Leetcode Solutions in Java Python C++

Pinned Summary - My Time Machine

Posted on September 1, 2006

0. Pinned Summary My time machine, please go back to 2006-09-01 damn hot Hangzhou. [Read More]

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2500 - Delete Greatest Value in Each Row

Posted on January 27, 2023

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2499 - Minimum Total Cost to Make Arrays Unequal

Posted on January 26, 2023

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2498 - Frog Jump II

Posted on January 25, 2023

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2497 - Maximum Star Sum of a Graph

Posted on January 24, 2023

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2496 - Maximum Value of a String in an Array

Posted on January 23, 2023

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2495 - Number of Subarrays Having Even Product

Posted on January 22, 2023

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2494 - Merge Overlapping Events in the Same Hall

Posted on January 21, 2023

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2493 - Divide Nodes Into the Maximum Number of Groups

Posted on January 20, 2023

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2492 - Minimum Score of a Path Between Two Cities

Posted on January 19, 2023

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2491 - Divide Players Into Teams of Equal Skill

Posted on January 18, 2023

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2490 - Circular Sentence

Posted on January 17, 2023

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2489 - Number of Substrings With Fixed Ratio

Posted on January 16, 2023

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2488 - Count Subarrays With Median K

Posted on January 15, 2023

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2487 - Remove Nodes From Linked List

Posted on January 14, 2023

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2486 - Append Characters to String to Make Subsequence

Posted on January 13, 2023

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2485 - Find the Pivot Integer

Posted on January 12, 2023

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2484 - Count Palindromic Subsequences

Posted on January 11, 2023

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2483 - Minimum Penalty for a Shop

Posted on January 10, 2023

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2482 - Difference Between Ones and Zeros in Row and Column

Posted on January 9, 2023

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2481 - Minimum Cuts to Divide a Circle

Posted on January 8, 2023

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2480 - Form a Chemical Bond

Posted on January 7, 2023

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2479 - Maximum XOR of Two Non-Overlapping Subtrees

Posted on January 6, 2023

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2478 - Number of Beautiful Partitions

Posted on January 5, 2023

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2477 - Minimum Fuel Cost to Report to the Capital

Posted on January 4, 2023

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2476 - Closest Nodes Queries in a Binary Search Tree

Posted on January 3, 2023

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2475 - Number of Unequal Triplets in Array

Posted on January 2, 2023

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2474 - Customers With Strictly Increasing Purchases

Posted on January 1, 2023

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2473 - Minimum Cost to Buy Apples

Posted on December 31, 2022

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2472 - Maximum Number of Non-overlapping Palindrome Substrings

Posted on December 30, 2022

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2471 - Minimum Number of Operations to Sort a Binary Tree by Level

Posted on December 29, 2022

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2470 - Number of Subarrays With LCM Equal to K

Posted on December 28, 2022

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2469 - Convert the Temperature

Posted on December 27, 2022

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2468 - Split Message Based on Limit

Posted on December 26, 2022

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2467 - Most Profitable Path in a Tree

Posted on December 25, 2022

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2466 - Count Ways To Build Good Strings

Posted on December 24, 2022

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2465 - Number of Distinct Averages

Posted on December 23, 2022

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2464 - Minimum Subarrays in a Valid Split

Posted on December 22, 2022

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2463 - Minimum Total Distance Traveled

Posted on December 21, 2022

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2462 - Total Cost to Hire K Workers

Posted on December 20, 2022

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2461 - Maximum Sum of Distinct Subarrays With Length K

Posted on December 19, 2022

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2460 - Apply Operations to an Array

Posted on December 18, 2022

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2459 - Sort Array by Moving Items to Empty Space

Posted on December 17, 2022

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2458 - Height of Binary Tree After Subtree Removal Queries

Posted on December 16, 2022

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2457 - Minimum Addition to Make Integer Beautiful

Posted on December 15, 2022

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2456 - Most Popular Video Creator

Posted on December 14, 2022

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2455 - Average Value of Even Numbers That Are Divisible by Three

Posted on December 13, 2022

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2454 - Next Greater Element IV

Posted on December 12, 2022

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2453 - Destroy Sequential Targets

Posted on December 11, 2022

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2452 - Words Within Two Edits of Dictionary

Posted on December 10, 2022

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2451 - Odd String Difference

Posted on December 9, 2022

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2450 - Number of Distinct Binary Strings After Applying Operations

Posted on December 8, 2022

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2449 - Minimum Number of Operations to Make Arrays Similar

Posted on December 7, 2022

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2448 - Minimum Cost to Make Array Equal

Posted on December 6, 2022

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2447 - Number of Subarrays With GCD Equal to K

Posted on December 5, 2022

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2446 - Determine if Two Events Have Conflict

Posted on December 4, 2022

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2445 - Number of Nodes With Value One

Posted on December 3, 2022

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2444 - Count Subarrays With Fixed Bounds

Posted on December 2, 2022

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2443 - Sum of Number and Its Reverse

Posted on December 1, 2022

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2442 - Count Number of Distinct Integers After Reverse Operations

Posted on November 30, 2022

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2441 - Largest Positive Integer That Exists With Its Negative

Posted on November 29, 2022

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2440 - Create Components With Same Value

Posted on November 28, 2022

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2439 - Minimize Maximum of Array

Posted on November 27, 2022

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2438 - Range Product Queries of Powers

Posted on November 26, 2022

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2437 - Number of Valid Clock Times

Posted on November 25, 2022

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2436 - Minimum Split Into Subarrays With GCD Greater Than One

Posted on November 24, 2022

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2435 - Paths in Matrix Whose Sum Is Divisible by K

Posted on November 23, 2022

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2434 - Using a Robot to Print the Lexicographically Smallest String

Posted on November 22, 2022

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2433 - Find The Original Array of Prefix Xor

Posted on November 21, 2022

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2432 - The Employee That Worked on the Longest Task

Posted on November 20, 2022

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2431 - Maximize Total Tastiness of Purchased Fruits

Posted on November 19, 2022

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2430 - Maximum Deletions on a String

Posted on November 18, 2022

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2429 - Minimize XOR

Posted on November 17, 2022

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2428 - Maximum Sum of an Hourglass

Posted on November 16, 2022

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2427 - Number of Common Factors

Posted on November 15, 2022

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2426 - Number of Pairs Satisfying Inequality

Posted on November 14, 2022

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2425 - Bitwise XOR of All Pairings

Posted on November 13, 2022

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2424 - Longest Uploaded Prefix

Posted on November 12, 2022

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2423 - Remove Letter To Equalize Frequency

Posted on November 11, 2022

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2422 - Merge Operations to Turn Array Into a Palindrome

Posted on November 10, 2022

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2421 - Number of Good Paths

Posted on November 9, 2022

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2420 - Find All Good Indices

Posted on November 8, 2022

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2419 - Longest Subarray With Maximum Bitwise AND

Posted on November 7, 2022

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2418 - Sort the People

Posted on November 6, 2022

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2417 - Closest Fair Integer

Posted on November 5, 2022

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2416 - Sum of Prefix Scores of Strings

Posted on November 4, 2022

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2415 - Reverse Odd Levels of Binary Tree

Posted on November 3, 2022

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2414 - Length of the Longest Alphabetical Continuous Substring

Posted on November 2, 2022

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2413 - Smallest Even Multiple

Posted on November 1, 2022

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2412 - Minimum Money Required Before Transactions

Posted on October 31, 2022

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2411 - Smallest Subarrays With Maximum Bitwise OR

Posted on October 30, 2022

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2410 - Maximum Matching of Players With Trainers

Posted on October 29, 2022

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2409 - Count Days Spent Together

Posted on October 28, 2022

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2408 - Design SQL

Posted on October 27, 2022

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2407 - Longest Increasing Subsequence II

Posted on October 26, 2022

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2406 - Divide Intervals Into Minimum Number of Groups

Posted on October 25, 2022

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2405 - Optimal Partition of String

Posted on October 24, 2022

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2404 - Most Frequent Even Element

Posted on October 23, 2022

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2403 - Minimum Time to Kill All Monsters

Posted on October 22, 2022

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2402 - Meeting Rooms III

Posted on October 21, 2022

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2401 - Longest Nice Subarray

Posted on October 20, 2022

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2400 - Number of Ways to Reach a Position After Exactly k Steps

Posted on October 19, 2022

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2399 - Check Distances Between Same Letters

Posted on October 18, 2022

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2398 - Maximum Number of Robots Within Budget

Posted on October 17, 2022

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2397 - Maximum Rows Covered by Columns

Posted on October 16, 2022

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2396 - Strictly Palindromic Number

Posted on October 15, 2022

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2395 - Find Subarrays With Equal Sum

Posted on October 14, 2022

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2394 - Employees With Deductions

Posted on October 13, 2022

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2393 - Count Strictly Increasing Subarrays

Posted on October 12, 2022

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2392 - Build a Matrix With Conditions

Posted on October 11, 2022

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2391 - Minimum Amount of Time to Collect Garbage

Posted on October 10, 2022

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2390 - Removing Stars From a String

Posted on October 9, 2022

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2389 - Longest Subsequence With Limited Sum

Posted on October 8, 2022

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2388 - Change Null Values in a Table to the Previous Value

Posted on October 7, 2022

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2387 - Median of a Row Wise Sorted Matrix

Posted on October 6, 2022

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2386 - Find the K-Sum of an Array

Posted on October 5, 2022

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2385 - Amount of Time for Binary Tree to Be Infected

Posted on October 4, 2022

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2384 - Largest Palindromic Number

Posted on October 3, 2022

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2383 - Minimum Hours of Training to Win a Competition

Posted on October 2, 2022

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2382 - Maximum Segment Sum After Removals

Posted on October 1, 2022

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2381 - Shifting Letters II

Posted on September 30, 2022

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2380 - Time Needed to Rearrange a Binary String

Posted on September 29, 2022

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2379 - Minimum Recolors to Get K Consecutive Black Blocks

Posted on September 28, 2022

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2378 - Choose Edges to Maximize Score in a Tree

Posted on September 27, 2022

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2377 - Sort the Olympic Table

Posted on September 26, 2022

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2376 - Count Special Integers

Posted on September 25, 2022

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2375 - Construct Smallest Number From DI String

Posted on September 24, 2022

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2374 - Node With Highest Edge Score

Posted on September 23, 2022

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2373 - Largest Local Values in a Matrix

Posted on September 22, 2022

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2372 - Calculate the Influence of Each Salesperson

Posted on September 21, 2022

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2371 - Minimize Maximum Value in a Grid

Posted on September 20, 2022

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2370 - Longest Ideal Subsequence

Posted on September 19, 2022

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2369 - Check if There is a Valid Partition For The Array

Posted on September 18, 2022

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2368 - Reachable Nodes With Restrictions

Posted on September 17, 2022

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2367 - Number of Arithmetic Triplets

Posted on September 16, 2022

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2366 - Minimum Replacements to Sort the Array

Posted on September 15, 2022

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2365 - Task Scheduler II

Posted on September 14, 2022

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2364 - Count Number of Bad Pairs

Posted on September 13, 2022

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2363 - Merge Similar Items

Posted on September 12, 2022

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2362 - Generate the Invoice

Posted on September 11, 2022

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2361 - Minimum Costs Using the Train Line

Posted on September 10, 2022

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2360 - Longest Cycle in a Graph

Posted on September 9, 2022

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2359 - Find Closest Node to Given Two Nodes

Posted on September 8, 2022

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2358 - Maximum Number of Groups Entering a Competition

Posted on September 7, 2022

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2357 - Make Array Zero by Subtracting Equal Amounts

Posted on September 6, 2022

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2356 - Number of Unique Subjects Taught by Each Teacher

Posted on September 5, 2022

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2355 - Maximum Number of Books You Can Take

Posted on September 4, 2022

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2354 - Number of Excellent Pairs

Posted on September 3, 2022

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2353 - Design a Food Rating System

Posted on September 2, 2022

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2352 - Equal Row and Column Pairs

Posted on September 1, 2022

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2351 - First Letter to Appear Twice

Posted on August 31, 2022

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2350 - Shortest Impossible Sequence of Rolls

Posted on August 30, 2022

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2349 - Design a Number Container System

Posted on August 29, 2022

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2348 - Number of Zero-Filled Subarrays

Posted on August 28, 2022

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2347 - Best Poker Hand

Posted on August 27, 2022

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2346 - Compute the Rank as a Percentage

Posted on August 26, 2022

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2345 - Finding the Number of Visible Mountains

Posted on August 25, 2022

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2344 - Minimum Deletions to Make Array Divisible

Posted on August 24, 2022

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2343 - Query Kth Smallest Trimmed Number

Posted on August 23, 2022

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2342 - Max Sum of a Pair With Equal Sum of Digits

Posted on August 22, 2022

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2341 - Maximum Number of Pairs in Array

Posted on August 21, 2022

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2340 - Minimum Adjacent Swaps to Make a Valid Array

Posted on August 20, 2022

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2339 - All the Matches of the League

Posted on August 19, 2022

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2338 - Count the Number of Ideal Arrays

Posted on August 18, 2022

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2337 - Move Pieces to Obtain a String

Posted on August 17, 2022

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2336 - Smallest Number in Infinite Set

Posted on August 16, 2022

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2335 - Minimum Amount of Time to Fill Cups

Posted on August 15, 2022

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2334 - Subarray With Elements Greater Than Varying Threshold

Posted on August 14, 2022

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2333 - Minimum Sum of Squared Difference

Posted on August 13, 2022

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2332 - The Latest Time to Catch a Bus

Posted on August 12, 2022

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2331 - Evaluate Boolean Binary Tree

Posted on August 11, 2022

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2330 - Valid Palindrome IV

Posted on August 10, 2022

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2329 - Product Sales Analysis V

Posted on August 9, 2022

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2328 - Number of Increasing Paths in a Grid

Posted on August 8, 2022

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2327 - Number of People Aware of a Secret

Posted on August 7, 2022

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2326 - Spiral Matrix IV

Posted on August 6, 2022

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2325 - Decode the Message

Posted on August 5, 2022

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2324 - Product Sales Analysis IV

Posted on August 4, 2022

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2323 - Find Minimum Time to Finish All Jobs II

Posted on August 3, 2022

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2322 - Minimum Score After Removals on a Tree

Posted on August 2, 2022

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2321 - Maximum Score Of Spliced Array

Posted on August 1, 2022

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2320 - Count Number of Ways to Place Houses

Posted on July 31, 2022

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2319 - Check if Matrix Is X-Matrix

Posted on July 30, 2022

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2318 - Number of Distinct Roll Sequences

Posted on July 29, 2022

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2317 - Maximum XOR After Operations

Posted on July 28, 2022

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2316 - Count Unreachable Pairs of Nodes in an Undirected Graph

Posted on July 27, 2022

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2315 - Count Asterisks

Posted on July 26, 2022

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2314 - The First Day of the Maximum Recorded Degree in Each City

Posted on July 25, 2022

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2313 - Minimum Flips in Binary Tree to Get Result

Posted on July 24, 2022

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2312 - Selling Pieces of Wood

Posted on July 23, 2022

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2311 - Longest Binary Subsequence Less Than or Equal to K

Posted on July 22, 2022

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2310 - Sum of Numbers With Units Digit K

Posted on July 21, 2022

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2309 - Greatest English Letter in Upper and Lower Case

Posted on July 20, 2022

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2308 - Arrange Table by Gender

Posted on July 19, 2022

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2307 - Check for Contradictions in Equations

Posted on July 18, 2022

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2306 - Naming a Company

Posted on July 17, 2022

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2305 - Fair Distribution of Cookies

Posted on July 16, 2022

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2304 - Minimum Path Cost in a Grid

Posted on July 15, 2022

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2303 - Calculate Amount Paid in Taxes

Posted on July 14, 2022

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2302 - Count Subarrays With Score Less Than K

Posted on July 13, 2022

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2301 - Match Substring After Replacement

Posted on July 12, 2022

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2300 - Successful Pairs of Spells and Potions

Posted on July 11, 2022

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2299 - Strong Password Checker II

Posted on July 10, 2022

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2298 - Tasks Count in the Weekend

Posted on July 9, 2022

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2297 - Jump Game IX

Posted on July 8, 2022

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2296 - Design a Text Editor

Posted on July 7, 2022

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2295 - Replace Elements in an Array

Posted on July 6, 2022

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2294 - Partition Array Such That Maximum Difference Is K

Posted on July 5, 2022

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2293 - Min Max Game

Posted on July 4, 2022

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2292 - Products With Three or More Orders in Two Consecutive Years

Posted on July 3, 2022

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2291 - Maximum Profit From Trading Stocks

Posted on July 2, 2022

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2290 - Minimum Obstacle Removal to Reach Corner

Posted on July 1, 2022

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2289 - Steps to Make Array Non-decreasing

Posted on June 30, 2022

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2288 - Apply Discount to Prices

Posted on June 29, 2022

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2287 - Rearrange Characters to Make Target String

Posted on June 28, 2022

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2286 - Booking Concert Tickets in Groups

Posted on June 27, 2022

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2285 - Maximum Total Importance of Roads

Posted on June 26, 2022

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2284 - Sender With Largest Word Count

Posted on June 25, 2022

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2283 - Check if Number Has Equal Digit Count and Digit Value

Posted on June 24, 2022

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2282 - Number of People That Can Be Seen in a Grid

Posted on June 23, 2022

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2281 - Sum of Total Strength of Wizards

Posted on June 22, 2022

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2280 - Minimum Lines to Represent a Line Chart

Posted on June 21, 2022

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2279 - Maximum Bags With Full Capacity of Rocks

Posted on June 20, 2022

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2278 - Percentage of Letter in String

Posted on June 19, 2022

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2277 - Closest Node to Path in Tree

Posted on June 18, 2022

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2276 - Count Integers in Intervals

Posted on June 17, 2022

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2275 - Largest Combination With Bitwise AND Greater Than Zero

Posted on June 16, 2022

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2274 - Maximum Consecutive Floors Without Special Floors

Posted on June 15, 2022

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2273 - Find Resultant Array After Removing Anagrams

Posted on June 14, 2022

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2272 - Substring With Largest Variance

Posted on June 13, 2022

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2271 - Maximum White Tiles Covered by a Carpet

Posted on June 12, 2022

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2270 - Number of Ways to Split Array

Posted on June 11, 2022

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2269 - Find the K-Beauty of a Number

Posted on June 10, 2022

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2268 - Minimum Number of Keypresses

Posted on June 9, 2022

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2267 - Check if There Is a Valid Parentheses String Path

Posted on June 8, 2022

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2266 - Count Number of Texts

Posted on June 7, 2022

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2265 - Count Nodes Equal to Average of Subtree

Posted on June 6, 2022

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2264 - Largest 3-Same-Digit Number in String

Posted on June 5, 2022

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2263 - Make Array Non-decreasing or Non-increasing

Posted on June 4, 2022

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2262 - Total Appeal of A String

Posted on June 3, 2022

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2261 - K Divisible Elements Subarrays

Posted on June 2, 2022

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2260 - Minimum Consecutive Cards to Pick Up

Posted on June 1, 2022

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2259 - Remove Digit From Number to Maximize Result

Posted on May 31, 2022

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2258 - Escape the Spreading Fire

Posted on May 30, 2022

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2257 - Count Unguarded Cells in the Grid

Posted on May 29, 2022

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2256 - Minimum Average Difference

Posted on May 28, 2022

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2255 - Count Prefixes of a Given String

Posted on May 27, 2022

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2254 - Design Video Sharing Platform

Posted on May 26, 2022

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2253 - Dynamic Unpivoting of a Table

Posted on May 25, 2022

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2252 - Dynamic Pivoting of a Table

Posted on May 24, 2022

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2251 - Number of Flowers in Full Bloom

Posted on May 23, 2022

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2250 - Count Number of Rectangles Containing Each Point

Posted on May 22, 2022

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2249 - Count Lattice Points Inside a Circle

Posted on May 21, 2022

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2248 - Intersection of Multiple Arrays

Posted on May 20, 2022

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2247 - Maximum Cost of Trip With K Highways

Posted on May 19, 2022

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2246 - Longest Path With Different Adjacent Characters

Posted on May 18, 2022

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2245 - Maximum Trailing Zeros in a Cornered Path

Posted on May 17, 2022

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2244 - Minimum Rounds to Complete All Tasks

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2243 - Calculate Digit Sum of a String

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2242 - Maximum Score of a Node Sequence

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2241 - Design an ATM Machine

Posted on May 13, 2022

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2240 - Number of Ways to Buy Pens and Pencils

Posted on May 12, 2022

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2239 - Find Closest Number to Zero

Posted on May 11, 2022

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2238 - Number of Times a Driver Was a Passenger

Posted on May 10, 2022

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2237 - Count Positions on Street With Required Brightness

Posted on May 9, 2022

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2236 - Root Equals Sum of Children

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2235 - Add Two Integers

Posted on May 7, 2022

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2234 - Maximum Total Beauty of the Gardens

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2233 - Maximum Product After K Increments

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2232 - Minimize Result by Adding Parentheses to Expression

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2231 - Largest Number After Digit Swaps by Parity

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2230 - The Users That Are Eligible for Discount

Posted on May 2, 2022

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2229 - Check if an Array Is Consecutive

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2228 - Users With Two Purchases Within Seven Days

Posted on April 30, 2022

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2227 - Encrypt and Decrypt Strings

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2226 - Maximum Candies Allocated to K Children

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2225 - Find Players With Zero or One Losses

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2224 - Minimum Number of Operations to Convert Time

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2223 - Sum of Scores of Built Strings

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2222 - Number of Ways to Select Buildings

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2221 - Find Triangular Sum of an Array

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2220 - Minimum Bit Flips to Convert Number

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2219 - Maximum Sum Score of Array

Posted on April 21, 2022

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2218 - Maximum Value of K Coins From Piles

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2217 - Find Palindrome With Fixed Length

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2216 - Minimum Deletions to Make Array Beautiful

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2215 - Find the Difference of Two Arrays

Posted on April 17, 2022

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2214 - Minimum Health to Beat Game

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2213 - Longest Substring of One Repeating Character

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2212 - Maximum Points in an Archery Competition

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2211 - Count Collisions on a Road

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2210 - Count Hills and Valleys in an Array

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2209 - Minimum White Tiles After Covering With Carpets

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2208 - Minimum Operations to Halve Array Sum

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2207 - Maximize Number of Subsequences in a String

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2206 - Divide Array Into Equal Pairs

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2205 - The Number of Users That Are Eligible for Discount

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2204 - Distance to a Cycle in Undirected Graph

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2203 - Minimum Weighted Subgraph With the Required Paths

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2202 - Maximize the Topmost Element After K Moves

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2201 - Count Artifacts That Can Be Extracted

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2200 - Find All K-Distant Indices in an Array

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2199 - Finding the Topic of Each Post

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2198 - Number of Single Divisor Triplets

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2197 - Replace Non-Coprime Numbers in Array

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2196 - Create Binary Tree From Descriptions

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2195 - Append K Integers With Minimal Sum

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2194 - Cells in a Range on an Excel Sheet

Posted on March 27, 2022

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2193 - Minimum Number of Moves to Make Palindrome

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2192 - All Ancestors of a Node in a Directed Acyclic Graph

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2191 - Sort the Jumbled Numbers

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2190 - Most Frequent Number Following Key In an Array

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2189 - Number of Ways to Build House of Cards

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2188 - Minimum Time to Finish the Race

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2187 - Minimum Time to Complete Trips

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2186 - Minimum Number of Steps to Make Two Strings Anagram II

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2185 - Counting Words With a Given Prefix

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2184 - Number of Ways to Build Sturdy Brick Wall

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2183 - Count Array Pairs Divisible by K

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2182 - Construct String With Repeat Limit

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2181 - Merge Nodes in Between Zeros

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2180 - Count Integers With Even Digit Sum

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2179 - Count Good Triplets in an Array

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2178 - Maximum Split of Positive Even Integers

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2177 - Find Three Consecutive Integers That Sum to a Given Number

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2176 - Count Equal and Divisible Pairs in an Array

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2175 - The Change in Global Rankings

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2174 - Remove All Ones With Row and Column Flips II

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2173 - Longest Winning Streak

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2172 - Maximum AND Sum of Array

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2171 - Removing Minimum Number of Magic Beans

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2170 - Minimum Operations to Make the Array Alternating

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2169 - Count Operations to Obtain Zero

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2168 - Unique Substrings With Equal Digit Frequency

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2167 - Minimum Time to Remove All Cars Containing Illegal Goods

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2166 - Design Bitset

Posted on February 27, 2022

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2165 - Smallest Value of the Rearranged Number

Posted on February 26, 2022

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2164 - Sort Even and Odd Indices Independently

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2163 - Minimum Difference in Sums After Removal of Elements

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2162 - Minimum Cost to Set Cooking Time

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2161 - Partition Array According to Given Pivot

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2160 - Minimum Sum of Four Digit Number After Splitting Digits

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2159 - Order Two Columns Independently

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2158 - Amount of New Area Painted Each Day

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2157 - Groups of Strings

Posted on February 18, 2022

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2156 - Find Substring With Given Hash Value

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2155 - All Divisions With the Highest Score of a Binary Array

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2154 - Keep Multiplying Found Values by Two

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2153 - The Number of Passengers in Each Bus II

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2152 - Minimum Number of Lines to Cover Points

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2151 - Maximum Good People Based on Statements

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2150 - Find All Lonely Numbers in the Array

Posted on February 11, 2022

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2149 - Rearrange Array Elements by Sign

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2148 - Count Elements With Strictly Smaller and Greater Elements

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2147 - Number of Ways to Divide a Long Corridor

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2146 - K Highest Ranked Items Within a Price Range

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2145 - Count the Hidden Sequences

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2144 - Minimum Cost of Buying Candies With Discount

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2143 - Choose Numbers From Two Arrays in Range

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2142 - The Number of Passengers in Each Bus I

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2141 - Maximum Running Time of N Computers

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2140 - Solving Questions With Brainpower

Posted on February 1, 2022

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2139 - Minimum Moves to Reach Target Score

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2138 - Divide a String Into Groups of Size k

Posted on January 30, 2022

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2137 - Pour Water Between Buckets to Make Water Levels Equal

Posted on January 29, 2022

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2136 - Earliest Possible Day of Full Bloom

Posted on January 28, 2022

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2135 - Count Words Obtained After Adding a Letter

Posted on January 27, 2022

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2134 - Minimum Swaps to Group All 1's Together II

Posted on January 26, 2022

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2133 - Check if Every Row and Column Contains All Numbers

Posted on January 25, 2022

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2132 - Stamping the Grid

Posted on January 24, 2022

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2131 - Longest Palindrome by Concatenating Two Letter Words

Posted on January 23, 2022

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2130 - Maximum Twin Sum of a Linked List

Posted on January 22, 2022

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2129 - Capitalize the Title

Posted on January 21, 2022

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2128 - Remove All Ones With Row and Column Flips

Posted on January 20, 2022

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2127 - Maximum Employees to Be Invited to a Meeting

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2126 - Destroying Asteroids

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2125 - Number of Laser Beams in a Bank

Posted on January 17, 2022

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2124 - Check if All A's Appears Before All B's

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2123 - Minimum Operations to Remove Adjacent Ones in Matrix

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2122 - Recover the Original Array

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2121 - Intervals Between Identical Elements

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2120 - Execution of All Suffix Instructions Staying in a Grid

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2119 - A Number After a Double Reversal

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2118 - Build the Equation

Posted on January 10, 2022

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2117 - Abbreviating the Product of a Range

Posted on January 9, 2022

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2116 - Check if a Parentheses String Can Be Valid

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2115 - Find All Possible Recipes from Given Supplies

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2114 - Maximum Number of Words Found in Sentences

Posted on January 6, 2022

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2113 - Elements in Array After Removing and Replacing Elements

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2112 - The Airport With the Most Traffic

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2111 - Minimum Operations to Make the Array K-Increasing

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2110 - Number of Smooth Descent Periods of a Stock

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2109 - Adding Spaces to a String

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2108 - Find First Palindromic String in the Array

Posted on December 31, 2021

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2107 - Number of Unique Flavors After Sharing K Candies

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2106 - Maximum Fruits Harvested After at Most K Steps

Posted on December 29, 2021

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2105 - Watering Plants II

Posted on December 28, 2021

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2104 - Sum of Subarray Ranges

Posted on December 27, 2021

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2103 - Rings and Rods

Posted on December 26, 2021

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2102 - Sequentially Ordinal Rank Tracker

Posted on December 25, 2021

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2101 - Detonate the Maximum Bombs

Posted on December 24, 2021

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2100 - Find Good Days to Rob the Bank

Posted on December 23, 2021

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2099 - Find Subsequence of Length K With the Largest Sum

Posted on December 22, 2021

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2098 - Subsequence of Size K With the Largest Even Sum

Posted on December 21, 2021

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2097 - Valid Arrangement of Pairs

Posted on December 20, 2021

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2096 - Step-By-Step Directions From a Binary Tree Node to Another

Posted on December 19, 2021

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2095 - Delete the Middle Node of a Linked List

Posted on December 18, 2021

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2094 - Finding 3-Digit Even Numbers

Posted on December 17, 2021

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2093 - Minimum Cost to Reach City With Discounts

Posted on December 16, 2021

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2092 - Find All People With Secret

Posted on December 15, 2021

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2091 - Removing Minimum and Maximum From Array

Posted on December 14, 2021

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2090 - K Radius Subarray Averages

Posted on December 13, 2021

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2089 - Find Target Indices After Sorting Array

Posted on December 12, 2021

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2088 - Count Fertile Pyramids in a Land

Posted on December 11, 2021

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2087 - Minimum Cost Homecoming of a Robot in a Grid

Posted on December 10, 2021

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2086 - Minimum Number of Buckets Required to Collect Rainwater from Houses

Posted on December 9, 2021

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2085 - Count Common Words With One Occurrence

Posted on December 8, 2021

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2084 - Drop Type 1 Orders for Customers With Type 0 Orders

Posted on December 7, 2021

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2083 - Substrings That Begin and End With the Same Letter

Posted on December 6, 2021

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2082 - The Number of Rich Customers

Posted on December 5, 2021

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2081 - Sum of k-Mirror Numbers

Posted on December 4, 2021

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2080 - Range Frequency Queries

Posted on December 3, 2021

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2079 - Watering Plants

Posted on December 2, 2021

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2078 - Two Furthest Houses With Different Colors

Posted on December 1, 2021

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2077 - Paths in Maze That Lead to Same Room

Posted on November 30, 2021

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2076 - Process Restricted Friend Requests

Posted on November 29, 2021

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2075 - Decode the Slanted Ciphertext

Posted on November 28, 2021

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2074 - Reverse Nodes in Even Length Groups

Posted on November 27, 2021

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2073 - Time Needed to Buy Tickets

Posted on November 26, 2021

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2072 - The Winner University

Posted on November 25, 2021

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2071 - Maximum Number of Tasks You Can Assign

Posted on November 24, 2021

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2070 - Most Beautiful Item for Each Query

Posted on November 23, 2021

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2069 - Walking Robot Simulation II

Posted on November 22, 2021

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2068 - Check Whether Two Strings are Almost Equivalent

Posted on November 21, 2021

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2067 - Number of Equal Count Substrings

Posted on November 20, 2021

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2066 - Account Balance

Posted on November 19, 2021

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2065 - Maximum Path Quality of a Graph

Posted on November 18, 2021

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2064 - Minimized Maximum of Products Distributed to Any Store

Posted on November 17, 2021

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2063 - Vowels of All Substrings

Posted on November 16, 2021

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2062 - Count Vowel Substrings of a String

Posted on November 15, 2021

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2061 - Number of Spaces Cleaning Robot Cleaned

Posted on November 14, 2021

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2060 - Check if an Original String Exists Given Two Encoded Strings

Posted on November 13, 2021

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2059 - Minimum Operations to Convert Number

Posted on November 12, 2021

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2058 - Find the Minimum and Maximum Number of Nodes Between Critical Points

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2057 - Smallest Index With Equal Value

Posted on November 10, 2021

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2056 - Number of Valid Move Combinations On Chessboard

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2055 - Plates Between Candles

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2054 - Two Best Non-Overlapping Events

Posted on November 7, 2021

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2053 - Kth Distinct String in an Array

Posted on November 6, 2021

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2052 - Minimum Cost to Separate Sentence Into Rows

Posted on November 5, 2021

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2051 - The Category of Each Member in the Store

Posted on November 4, 2021

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2050 - Parallel Courses III

Posted on November 3, 2021

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2049 - Count Nodes With the Highest Score

Posted on November 2, 2021

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2048 - Next Greater Numerically Balanced Number

Posted on November 1, 2021

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2047 - Number of Valid Words in a Sentence

Posted on October 31, 2021

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2046 - Sort Linked List Already Sorted Using Absolute Values

Posted on October 30, 2021

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2045 - Second Minimum Time to Reach Destination

Posted on October 29, 2021

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2044 - Count Number of Maximum Bitwise-OR Subsets

Posted on October 28, 2021

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2043 - Simple Bank System

Posted on October 27, 2021

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2042 - Check if Numbers Are Ascending in a Sentence

Posted on October 26, 2021

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2041 - Accepted Candidates From the Interviews

Posted on October 25, 2021

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2040 - Kth Smallest Product of Two Sorted Arrays

Posted on October 24, 2021

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2039 - The Time When the Network Becomes Idle

Posted on October 23, 2021

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2038 - Remove Colored Pieces if Both Neighbors are the Same Color

Posted on October 22, 2021

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2037 - Minimum Number of Moves to Seat Everyone

Posted on October 21, 2021

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2036 - Maximum Alternating Subarray Sum

Posted on October 20, 2021

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2035 - Partition Array Into Two Arrays to Minimize Sum Difference

Posted on October 19, 2021

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2034 - Stock Price Fluctuation

Posted on October 18, 2021

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2033 - Minimum Operations to Make a Uni-Value Grid

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2032 - Two Out of Three

Posted on October 16, 2021

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2031 - Count Subarrays With More Ones Than Zeros

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2030 - Smallest K-Length Subsequence With Occurrences of a Letter

Posted on October 14, 2021

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2029 - Stone Game IX

Posted on October 13, 2021

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2028 - Find Missing Observations

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2027 - Minimum Moves to Convert String

Posted on October 11, 2021

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2026 - Low-Quality Problems

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2025 - Maximum Number of Ways to Partition an Array

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2024 - Maximize the Confusion of an Exam

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2023 - Number of Pairs of Strings With Concatenation Equal to Target

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2022 - Convert 1D Array Into 2D Array

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2021 - Brightest Position on Street

Posted on October 5, 2021

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2020 - Number of Accounts That Did Not Stream

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2019 - The Score of Students Solving Math Expression

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2018 - Check if Word Can Be Placed In Crossword

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2017 - Grid Game

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2016 - Maximum Difference Between Increasing Elements

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2015 - Average Height of Buildings in Each Segment

Posted on September 29, 2021

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2014 - Longest Subsequence Repeated k Times

Posted on September 28, 2021

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2013 - Detect Squares

Posted on September 27, 2021

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2012 - Sum of Beauty in the Array

Posted on September 26, 2021

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2011 - Final Value of Variable After Performing Operations

Posted on September 25, 2021

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2010 - The Number of Seniors and Juniors to Join the Company II

Posted on September 24, 2021

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2009 - Minimum Number of Operations to Make Array Continuous

Posted on September 23, 2021

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2008 - Maximum Earnings From Taxi

Posted on September 22, 2021

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2007 - Find Original Array From Doubled Array

Posted on September 21, 2021

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2006 - Count Number of Pairs With Absolute Difference K

Posted on September 20, 2021

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2005 - Subtree Removal Game with Fibonacci Tree

Posted on September 19, 2021

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2004 - The Number of Seniors and Juniors to Join the Company

Posted on September 18, 2021

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2003 - Smallest Missing Genetic Value in Each Subtree

Posted on September 17, 2021

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2002 - Maximum Product of the Length of Two Palindromic Subsequences

Posted on September 16, 2021

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2001 - Number of Pairs of Interchangeable Rectangles

Posted on September 15, 2021

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2000 - Reverse Prefix of Word

Posted on September 14, 2021

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1999 - Smallest Greater Multiple Made of Two Digits

Posted on September 13, 2021

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1998 - GCD Sort of an Array

Posted on September 12, 2021

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1997 - First Day Where You Have Been in All the Rooms

Posted on September 11, 2021

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1996 - The Number of Weak Characters in the Game

Posted on September 10, 2021

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1995 - Count Special Quadruplets

Posted on September 9, 2021

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1994 - The Number of Good Subsets

Posted on September 8, 2021

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1993 - Operations on Tree

Posted on September 7, 2021

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1992 - Find All Groups of Farmland

Posted on September 6, 2021

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1991 - Find the Middle Index in Array

Posted on September 5, 2021

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1990 - Count the Number of Experiments

Posted on September 4, 2021

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1989 - Maximum Number of People That Can Be Caught in Tag

Posted on September 3, 2021

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1988 - Find Cutoff Score for Each School

Posted on September 2, 2021

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1987 - Number of Unique Good Subsequences

Posted on September 1, 2021

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1986 - Minimum Number of Work Sessions to Finish the Tasks

Posted on August 31, 2021

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1985 - Find the Kth Largest Integer in the Array

Posted on August 30, 2021

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1984 - Minimum Difference Between Highest and Lowest of K Scores

Posted on August 29, 2021

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1983 - Widest Pair of Indices With Equal Range Sum

Posted on August 28, 2021

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1982 - Find Array Given Subset Sums

Posted on August 27, 2021

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1981 - Minimize the Difference Between Target and Chosen Elements

Posted on August 26, 2021

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1980 - Find Unique Binary String

Posted on August 25, 2021

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1979 - Find Greatest Common Divisor of Array

Posted on August 24, 2021

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1978 - Employees Whose Manager Left the Company

Posted on August 23, 2021

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1977 - Number of Ways to Separate Numbers

Posted on August 22, 2021

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1976 - Number of Ways to Arrive at Destination

Posted on August 21, 2021

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Tags: .Star

1975 - Maximum Matrix Sum

Posted on August 20, 2021

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1974 - Minimum Time to Type Word Using Special Typewriter

Posted on August 19, 2021

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1973 - Count Nodes Equal to Sum of Descendants

Posted on August 18, 2021

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1972 - First and Last Call On the Same Day

Posted on August 18, 2021

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1971 - Find if Path Exists in Graph

Posted on August 17, 2021

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1970 - Last Day Where You Can Still Cross

Posted on August 17, 2021

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1969 - Minimum Non-Zero Product of the Array Elements

Posted on August 17, 2021

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1968 - Array With Elements Not Equal to Average of Neighbors

Posted on August 16, 2021

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1967 - Number of Strings That Appear as Substrings in Word

Posted on August 16, 2021

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1966 - Binary Searchable Numbers in an Unsorted Array

Posted on August 16, 2021

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1965 - Employees With Missing Information

Posted on August 16, 2021

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1964 - Find the Longest Valid Obstacle Course at Each Position

Posted on August 15, 2021

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1963 - Minimum Number of Swaps to Make the String Balanced

Posted on August 15, 2021

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1962 - Remove Stones to Minimize the Total

Posted on August 15, 2021

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1961 - Check If String Is a Prefix of Array

Posted on August 14, 2021

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1960 - Maximum Product of the Length of Two Palindromic Substrings

Posted on August 14, 2021

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1959 - Minimum Total Space Wasted With K Resizing Operations

Posted on August 14, 2021

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1958 - Check if Move is Legal

Posted on August 13, 2021

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1957 - Delete Characters to Make Fancy String

Posted on August 13, 2021

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1956 - Minimum Time For K Virus Variants to Spread

Posted on August 13, 2021

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1955 - Count Number of Special Subsequences

Posted on August 13, 2021

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1954 - Minimum Garden Perimeter to Collect Enough Apples

Posted on August 12, 2021

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1953 - Maximum Number of Weeks for Which You Can Work

Posted on August 12, 2021

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1952 - Three Divisors

Posted on August 12, 2021

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1951 - All the Pairs With the Maximum Number of Common Followers

Posted on August 11, 2021

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1950 - Maximum of Minimum Values in All Subarrays

Posted on August 11, 2021

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1949 - Strong Friendship

Posted on August 11, 2021

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1948 - Delete Duplicate Folders in System

Posted on August 10, 2021

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1947 - Maximum Compatibility Score Sum

Posted on August 10, 2021

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1946 - Largest Number After Mutating Substring

Posted on August 10, 2021

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1945 - Sum of Digits of String After Convert

Posted on August 10, 2021

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1944 - Number of Visible People in a Queue

Posted on August 9, 2021

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1943 - Describe the Painting

Posted on August 9, 2021

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1942 - The Number of the Smallest Unoccupied Chair

Posted on August 9, 2021

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1941 - Check if All Characters Have Equal Number of Occurrences

Posted on August 8, 2021

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1940 - Longest Common Subsequence Between Sorted Arrays

Posted on August 8, 2021

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1939 - Users That Actively Request Confirmation Messages

Posted on August 8, 2021

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1938 - Maximum Genetic Difference Query

Posted on August 7, 2021

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1937 - Maximum Number of Points with Cost

Posted on August 7, 2021

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1936 - Add Minimum Number of Rungs

Posted on August 7, 2021

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1935 - Maximum Number of Words You Can Type

Posted on August 7, 2021

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1934 - Confirmation Rate

Posted on August 6, 2021

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1933 - Check if String Is Decomposable Into Value-Equal Substrings

Posted on August 6, 2021

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1932 - Merge BSTs to Create Single BST

Posted on August 6, 2021

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1931 - Painting a Grid With Three Different Colors

Posted on August 5, 2021

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1930 - Unique Length-3 Palindromic Subsequences

Posted on August 5, 2021

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1929 - Concatenation of Array

Posted on August 5, 2021

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1928 - Minimum Cost to Reach Destination in Time

Posted on August 4, 2021

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1927 - Sum Game

Posted on August 4, 2021

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1926 - Nearest Exit from Entrance in Maze

Posted on August 4, 2021

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1925 - Count Square Sum Triples

Posted on August 4, 2021

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1924 - Erect the Fence II

Posted on August 3, 2021

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1923 - Longest Common Subpath

Posted on August 3, 2021

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1922 - Count Good Numbers

Posted on August 3, 2021

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1921 - Eliminate Maximum Number of Monsters

Posted on August 2, 2021

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1920 - Build Array from Permutation

Posted on August 2, 2021

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1919 - Leetcodify Similar Friends

Posted on August 2, 2021

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1918 - Kth Smallest Subarray Sum

Posted on August 1, 2021

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1917 - Leetcodify Friends Recommendations

Posted on August 1, 2021

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1916 - Count Ways to Build Rooms in an Ant Colony

Posted on August 1, 2021

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1915 - Number of Wonderful Substrings

Posted on August 1, 2021

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1914 - Cyclically Rotating a Grid

Posted on July 31, 2021

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1913 - Maximum Product Difference Between Two Pairs

Posted on July 31, 2021

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1912 - Design Movie Rental System

Posted on July 31, 2021

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Tags: Facebook LinkedIn .Design

1911 - Maximum Alternating Subsequence Sum

Posted on July 30, 2021

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1910 - Remove All Occurrences of a Substring

Posted on July 30, 2021

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1909 - Remove One Element to Make the Array Strictly Increasing

Posted on July 30, 2021

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1908 - Game of Nim

Posted on July 29, 2021

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1907 - Count Salary Categories

Posted on July 29, 2021

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1906 - Minimum Absolute Difference Queries

Posted on July 29, 2021

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1905 - Count Sub Islands

Posted on July 29, 2021

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1904 - The Number of Full Rounds You Have Played

Posted on July 28, 2021

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1903 - Largest Odd Number in String

Posted on July 28, 2021

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1902 - Depth of BST Given Insertion Order

Posted on July 28, 2021

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1901 - Find a Peak Element II

Posted on July 27, 2021

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1900 - The Earliest and Latest Rounds Where Players Compete

Posted on July 27, 2021

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1899 - Merge Triplets to Form Target Triplet

Posted on July 27, 2021

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1898 - Maximum Number of Removable Characters

Posted on July 26, 2021

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1897 - Redistribute Characters to Make All Strings Equal

Posted on July 26, 2021

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1896 - Minimum Cost to Change the Final Value of Expression

Posted on July 26, 2021

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1895 - Largest Magic Square

Posted on July 26, 2021

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1894 - Find the Student that Will Replace the Chalk

Posted on July 25, 2021

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1893 - Check if All the Integers in a Range Are Covered

Posted on July 25, 2021

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1892 - Page Recommendations II

Posted on July 25, 2021

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1891 - Cutting Ribbons

Posted on July 24, 2021

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1890 - The Latest Login in 2020

Posted on July 24, 2021

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1889 - Minimum Space Wasted From Packaging

Posted on July 24, 2021

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1888 - Minimum Number of Flips to Make the Binary String Alternating

Posted on July 23, 2021

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1887 - Reduction Operations to Make the Array Elements Equal

Posted on July 23, 2021

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1886 - Determine Whether Matrix Can Be Obtained By Rotation

Posted on July 23, 2021

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1885 - Count Pairs in Two Arrays

Posted on July 23, 2021

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1884 - Egg Drop With 2 Eggs and N Floors

Posted on July 22, 2021

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1883 - Minimum Skips to Arrive at Meeting On Time

Posted on July 22, 2021

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1882 - Process Tasks Using Servers

Posted on July 22, 2021

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1881 - Maximum Value after Insertion

Posted on July 21, 2021

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1880 - Check if Word Equals Summation of Two Words

Posted on July 21, 2021

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1879 - Minimum XOR Sum of Two Arrays

Posted on July 21, 2021

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1878 - Get Biggest Three Rhombus Sums in a Grid

Posted on July 20, 2021

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1877 - Minimize Maximum Pair Sum in Array

Posted on July 20, 2021

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1876 - Substrings of Size Three with Distinct Characters

Posted on July 20, 2021

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1875 - Group Employees of the Same Salary

Posted on July 20, 2021

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1874 - Minimize Product Sum of Two Arrays

Posted on July 19, 2021

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1873 - Calculate Special Bonus

Posted on July 19, 2021

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1872 - Stone Game VIII

Posted on July 19, 2021

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1871 - Jump Game VII

Posted on July 18, 2021

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1870 - Minimum Speed to Arrive on Time

Posted on July 18, 2021

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1869 - Longer Contiguous Segments of Ones than Zeros

Posted on July 18, 2021

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1868 - Product of Two Run-Length Encoded Arrays

Posted on July 17, 2021

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1867 - Orders With Maximum Quantity Above Average

Posted on July 17, 2021

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1866 - Number of Ways to Rearrange Sticks With K Sticks Visible

Posted on July 17, 2021

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1865 - Finding Pairs With a Certain Sum

Posted on July 17, 2021

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1864 - Minimum Number of Swaps to Make the Binary String Alternating

Posted on July 16, 2021

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1863 - Sum of All Subset XOR Totals

Posted on July 16, 2021

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1862 - Sum of Floored Pairs

Posted on July 16, 2021

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1861 - Rotating the Box

Posted on July 15, 2021

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1860 - Incremental Memory Leak

Posted on July 15, 2021

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1859 - Sorting the Sentence

Posted on July 15, 2021

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1858 - Longest Word With All Prefixes

Posted on July 14, 2021

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1857 - Largest Color Value in a Directed Graph

Posted on July 14, 2021

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1856 - Maximum Subarray Min-Product

Posted on July 14, 2021

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1855 - Maximum Distance Between a Pair of Values

Posted on July 14, 2021

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1854 - Maximum Population Year

Posted on July 13, 2021

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1853 - Convert Date Format

Posted on July 13, 2021

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1852 - Distinct Numbers in Each Subarray

Posted on July 13, 2021

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1851 - Minimum Interval to Include Each Query

Posted on July 12, 2021

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1850 - Minimum Adjacent Swaps to Reach the Kth Smallest Number

Posted on July 11, 2021

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1849 - Splitting a String Into Descending Consecutive Values

Posted on July 10, 2021

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1848 - Minimum Distance to the Target Element

Posted on July 9, 2021

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1847 - Closest Room

Posted on July 8, 2021

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1846 - Maximum Element After Decreasing and Rearranging

Posted on July 7, 2021

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1845 - Seat Reservation Manager

Posted on July 6, 2021

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Tags: .Star .TreeSet

1844 - Replace All Digits with Characters

Posted on July 5, 2021

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1843 - Suspicious Bank Accounts

Posted on July 4, 2021

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1842 - Next Palindrome Using Same Digits

Posted on July 3, 2021

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1841 - League Statistics

Posted on July 2, 2021

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1840 - Maximum Building Height

Posted on July 1, 2021

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1839 - Longest Substring Of All Vowels in Order

Posted on June 30, 2021

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1838 - Frequency of the Most Frequent Element

Posted on June 29, 2021

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1837 - Sum of Digits in Base K

Posted on June 28, 2021

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1836 - Remove Duplicates From an Unsorted Linked List

Posted on June 27, 2021

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1835 - Find XOR Sum of All Pairs Bitwise AND

Posted on June 26, 2021

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1834 - Single-Threaded CPU

Posted on June 25, 2021

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1833 - Maximum Ice Cream Bars

Posted on June 24, 2021

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1832 - Check if the Sentence Is Pangram

Posted on June 23, 2021

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1831 - Maximum Transaction Each Day

Posted on June 22, 2021

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1830 - Minimum Number of Operations to Make String Sorted

Posted on June 21, 2021

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1829 - Maximum XOR for Each Query

Posted on June 20, 2021

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1828 - Queries on Number of Points Inside a Circle

Posted on June 19, 2021

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1827 - Minimum Operations to Make the Array Increasing

Posted on June 18, 2021

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1826 - Faulty Sensor

Posted on June 17, 2021

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1825 - Finding MK Average

Posted on June 16, 2021

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1824 - Minimum Sideway Jumps

Posted on June 15, 2021

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1823 - Find the Winner of the Circular Game

Posted on June 14, 2021

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1822 - Sign of the Product of an Array

Posted on June 13, 2021

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1821 - Find Customers With Positive Revenue this Year

Posted on June 12, 2021

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1820 - Maximum Number of Accepted Invitations

Posted on June 11, 2021

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1819 - Number of Different Subsequences GCDs

Posted on June 10, 2021

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1818 - Minimum Absolute Sum Difference

Posted on June 9, 2021

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1817 - Finding the Users Active Minutes

Posted on June 8, 2021

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1816 - Truncate Sentence

Posted on June 7, 2021

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1815 - Maximum Number of Groups Getting Fresh Donuts

Posted on June 6, 2021

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1814 - Count Nice Pairs in an Array

Posted on June 5, 2021

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1813 - Sentence Similarity III

Posted on June 4, 2021

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1812 - Determine Color of a Chessboard Square

Posted on June 3, 2021

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1811 - Find Interview Candidates

Posted on June 2, 2021

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1810 - Minimum Path Cost in a Hidden Grid

Posted on June 1, 2021

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1809 - Ad-Free Sessions

Posted on May 31, 2021

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1808 - Maximize Number of Nice Divisors

Posted on May 30, 2021

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1807 - Evaluate the Bracket Pairs of a String

Posted on May 29, 2021

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1806 - Minimum Number of Operations to Reinitialize a Permutation

Posted on May 28, 2021

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1805 - Number of Different Integers in a String

Posted on May 27, 2021

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1804 - Implement Trie II (Prefix Tree)

Posted on May 26, 2021

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1803 - Count Pairs With XOR in a Range

Posted on May 25, 2021

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1802 - Maximum Value at a Given Index in a Bounded Array

Posted on May 24, 2021

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1801 - Number of Orders in the Backlog

Posted on May 23, 2021

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1800 - Maximum Ascending Subarray Sum

Posted on May 22, 2021

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1799 - Maximize Score After N Operations

Posted on May 21, 2021

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1798 - Maximum Number of Consecutive Values You Can Make

Posted on May 20, 2021

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1797 - Design Authentication Manager

Posted on May 19, 2021

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Tags: .Design

1796 - Second Largest Digit in a String

Posted on May 18, 2021

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1795 - Rearrange Products Table

Posted on May 17, 2021

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Tags: SQL

1794 - Count Pairs of Equal Substrings With Minimum Difference

Posted on May 16, 2021

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1793 - Maximum Score of a Good Subarray

Posted on May 15, 2021

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1792 - Maximum Average Pass Ratio

Posted on May 14, 2021

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1791 - Find Center of Star Graph

Posted on May 13, 2021

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1790 - Check if One String Swap Can Make Strings Equal

Posted on May 12, 2021

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1789 - Primary Department for Each Employee

Posted on May 11, 2021

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1788 - Maximize the Beauty of the Garden

Posted on May 10, 2021

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Tags: .Star

1787 - Make the XOR of All Segments Equal to Zero

Posted on May 9, 2021

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1786 - Number of Restricted Paths From First to Last Node

Posted on May 8, 2021

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1785 - Minimum Elements to Add to Form a Given Sum

Posted on May 7, 2021

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1784 - Check if Binary String Has at Most One Segment of Ones

Posted on May 6, 2021

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1783 - Grand Slam Titles

Posted on May 5, 2021

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1782 - Count Pairs Of Nodes

Posted on May 4, 2021

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1781 - Sum of Beauty of All Substrings

Posted on May 3, 2021

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1780 - Check if Number is a Sum of Powers of Three

Posted on May 2, 2021

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1779 - Find Nearest Point That Has the Same X or Y Coordinate

Posted on May 1, 2021

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1778 - Shortest Path in a Hidden Grid

Posted on April 30, 2021

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1777 - Product's Price for Each Store

Posted on April 29, 2021

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1776 - Car Fleet II

Posted on April 28, 2021

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1775 - Equal Sum Arrays With Minimum Number of Operations

Posted on April 27, 2021

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1774 - Closest Dessert Cost

Posted on April 26, 2021

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1773 - Count Items Matching a Rule

Posted on April 25, 2021

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1772 - Sort Features by Popularity

Posted on April 24, 2021

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1771 - Maximize Palindrome Length From Subsequences

Posted on April 23, 2021

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1770 - Maximum Score from Performing Multiplication Operations

Posted on April 22, 2021

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1769 - Minimum Number of Operations to Move All Balls to Each Box

Posted on April 21, 2021

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1768 - Merge Strings Alternately

Posted on April 20, 2021

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1767 - Find the Subtasks That Did Not Execute

Posted on April 19, 2021

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1766 - Tree of Coprimes

Posted on April 18, 2021

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1765 - Map of Highest Peak

Posted on April 17, 2021

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1764 - Form Array by Concatenating Subarrays of Another Array

Posted on April 16, 2021

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1763 - Longest Nice Substring

Posted on April 15, 2021

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1762 - Buildings With an Ocean View

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1761 - Minimum Degree of a Connected Trio in a Graph

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1760 - Minimum Limit of Balls in a Bag

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1759 - Count Number of Homogenous Substrings

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1758 - Minimum Changes To Make Alternating Binary String

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1757 - Recyclable and Low Fat Products

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1756 - Design Most Recently Used Queue

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1755 - Closest Subsequence Sum

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1754 - Largest Merge Of Two Strings

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1753 - Maximum Score From Removing Stones

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1752 - Check if Array Is Sorted and Rotated

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1751 - Maximum Number of Events That Can Be Attended II

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1750 - Minimum Length of String After Deleting Similar Ends

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1749 - Maximum Absolute Sum of Any Subarray

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1748 - Sum of Unique Elements

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1747 - Leetflex Banned Accounts

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1746 - Maximum Subarray Sum After One Operation

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1745 - Palindrome Partitioning IV

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1744 - Can You Eat Your Favorite Candy on Your Favorite Day

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1743 - Restore the Array From Adjacent Pairs

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1742 - Maximum Number of Balls in a Box

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1741 - Find Total Time Spent by Each Employee

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1740 - Find Distance in a Binary Tree

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1739 - Building Boxes

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1738 - Find Kth Largest XOR Coordinate Value

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1737 - Change Minimum Characters to Satisfy One of Three Conditions

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1736 - Latest Time by Replacing Hidden Digits

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1735 - Count Ways to Make Array With Product

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1734 - Decode XORed Permutation

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1733 - Minimum Number of People to Teach

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1732 - Find the Highest Altitude

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1731 - The Number of Employees Which Report to Each Employee

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1730 - Shortest Path to Get Food

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1729 - Find Followers Count

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1728 - Cat and Mouse II

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1727 - Largest Submatrix With Rearrangements

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1726 - Tuple with Same Product

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1725 - Number Of Rectangles That Can Form The Largest Square

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1724 - Checking Existence of Edge Length Limited Paths II

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1723 - Find Minimum Time to Finish All Jobs

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1722 - Minimize Hamming Distance After Swap Operations

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1721 - Swapping Nodes in a Linked List

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1720 - Decode XORed Array

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1719 - Number Of Ways To Reconstruct A Tree

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1718 - Construct the Lexicographically Largest Valid Sequence

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1717 - Maximum Score From Removing Substrings

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1716 - Calculate Money in Leetcode Bank

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1715 - Count Apples and Oranges

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1714 - Sum Of Special Evenly-Spaced Elements In Array

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1713 - Minimum Operations to Make a Subsequence

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1712 - Ways to Split Array Into Three Subarrays

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1711 - Count Good Meals

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1710 - Maximum Units on a Truck

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1709 - Biggest Window Between Visits

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1708 - Largest Subarray Length K

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1707 - Maximum XOR With an Element From Array

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1706 - Where Will the Ball Fall

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1705 - Maximum Number of Eaten Apples

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1704 - Determine if String Halves Are Alike

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1703 - Minimum Adjacent Swaps for K Consecutive Ones

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1702 - Maximum Binary String After Change

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1701 - Average Waiting Time

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1700 - Number of Students Unable to Eat Lunch

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1699 - Number of Calls Between Two Persons

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1698 - Number of Distinct Substrings in a String

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1697 - Checking Existence of Edge Length Limited Paths

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1696 - Jump Game VI

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1695 - Maximum Erasure Value

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1694 - Reformat Phone Number

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1693 - Daily Leads and Partners

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1692 - Count Ways to Distribute Candies

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1691 - Maximum Height by Stacking Cuboids

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1690 - Stone Game VII

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1689 - Partitioning Into Minimum Number Of Deci-Binary Numbers

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1688 - Count of Matches in Tournament

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1687 - Delivering Boxes from Storage to Ports

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1686 - Stone Game VI

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1685 - Sum of Absolute Differences in a Sorted Array

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1684 - Count the Number of Consistent Strings

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1683 - Invalid Tweets

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1682 - Longest Palindromic Subsequence II

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1681 - Minimum Incompatibility

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1680 - Concatenation of Consecutive Binary Numbers

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1679 - Max Number of K-Sum Pairs

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1678 - Goal Parser Interpretation

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1677 - Product's Worth Over Invoices

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1676 - Lowest Common Ancestor of a Binary Tree IV

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1675 - Minimize Deviation in Array

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1674 - Minimum Moves to Make Array Complementary

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1673 - Find the Most Competitive Subsequence

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1672 - Richest Customer Wealth

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1671 - Minimum Number of Removals to Make Mountain Array

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1670 - Design Front Middle Back Queue

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1669 - Merge In Between Linked Lists

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1668 - Maximum Repeating Substring

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1667 - Fix Names in a Table

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1666 - Change the Root of a Binary Tree

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1665 - Minimum Initial Energy to Finish Tasks

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1664 - Ways to Make a Fair Array

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1663 - Smallest String With A Given Numeric Value

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1662 - Check If Two String Arrays are Equivalent

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1661 - Average Time of Process per Machine

Posted on June 17, 2020

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1660 - Correct a Binary Tree

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1659 - Maximize Grid Happiness

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1658 - Minimum Operations to Reduce X to Zero

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1657 - Determine if Two Strings Are Close

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1656 - Design an Ordered Stream

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1655 - Distribute Repeating Integers

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1654 - Minimum Jumps to Reach Home

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1653 - Minimum Deletions to Make String Balanced

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1652 - Defuse the Bomb

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1651 - Hopper Company Queries III

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1650 - Lowest Common Ancestor of a Binary Tree III

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1649 - Create Sorted Array through Instructions

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1648 - Sell Diminishing-Valued Colored Balls

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1647 - Minimum Deletions to Make Character Frequencies Unique

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1646 - Get Maximum in Generated Array

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1645 - Hopper Company Queries II

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1644 - Lowest Common Ancestor of a Binary Tree II

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1643 - Kth Smallest Instructions

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1642 - Furthest Building You Can Reach

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1641 - Count Sorted Vowel Strings

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1640 - Check Array Formation Through Concatenation

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1639 - Number of Ways to Form a Target String Given a Dictionary

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1638 - Count Substrings That Differ by One Character

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1637 - Widest Vertical Area Between Two Points Containing No Points

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1636 - Sort Array by Increasing Frequency

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1635 - Hopper Company Queries I

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1634 - Add Two Polynomials Represented as Linked Lists

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1633 - Percentage of Users Attended a Contest

Posted on May 20, 2020

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1632 - Rank Transform of a Matrix

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1631 - Path With Minimum Effort

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1630 - Arithmetic Subarrays

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1629 - Slowest Key

Posted on May 16, 2020

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1628 - Design an Expression Tree With Evaluate Function

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1627 - Graph Connectivity With Threshold

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1626 - Best Team With No Conflicts

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1625 - Lexicographically Smallest String After Applying Operations

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1624 - Largest Substring Between Two Equal Characters

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1623 - All Valid Triplets That Can Represent a Country

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1622 - Fancy Sequence

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1621 - Number of Sets of K Non-Overlapping Line Segments

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1620 - Coordinate With Maximum Network Quality

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1619 - Mean of Array After Removing Some Elements

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1618 - Maximum Font to Fit a Sentence in a Screen

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1617 - Count Subtrees With Max Distance Between Cities

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1616 - Split Two Strings to Make Palindrome

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1615 - Maximal Network Rank

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Tags: Microsoft

1614 - Maximum Nesting Depth of the Parentheses

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1613 - Find the Missing IDs

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1612 - Check If Two Expression Trees are Equivalent

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1611 - Minimum One Bit Operations to Make Integers Zero

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1610 - Maximum Number of Visible Points

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1609 - Even Odd Tree

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1608 - Special Array With X Elements Greater Than or Equal X

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1607 - Sellers With No Sales

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1606 - Find Servers That Handled Most Number of Requests

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1605 - Find Valid Matrix Given Row and Column Sums

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1604 - Alert Using Same Key-Card Three or More Times in a One Hour Period

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1603 - Design Parking System

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1602 - Find Nearest Right Node in Binary Tree

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1601 - Maximum Number of Achievable Transfer Requests

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1600 - Throne Inheritance

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1599 - Maximum Profit of Operating a Centennial Wheel

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1598 - Crawler Log Folder

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1597 - Build Binary Expression Tree From Infix Expression

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1596 - The Most Frequently Ordered Products for Each Customer

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1595 - Minimum Cost to Connect Two Groups of Points

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1594 - Maximum Non Negative Product in a Matrix

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1593 - Split a String Into the Max Number of Unique Substrings

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1592 - Rearrange Spaces Between Words

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1591 - Strange Printer II

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1590 - Make Sum Divisible by P

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1589 - Maximum Sum Obtained of Any Permutation

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1588 - Sum of All Odd Length Subarrays

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1587 - Bank Account Summary II

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1586 - Binary Search Tree Iterator II

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1585 - Check If String Is Transformable With Substring Sort Operations

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1584 - Min Cost to Connect All Points

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1583 - Count Unhappy Friends

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1582 - Special Positions in a Binary Matrix

Posted on March 30, 2020

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1581 - Customer Who Visited but Did Not Make Any Transactions

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1580 - Put Boxes Into the Warehouse II

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1579 - Remove Max Number of Edges to Keep Graph Fully Traversable

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1578 - Minimum Deletion Cost to Avoid Repeating Letters

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1577 - Number of Ways Where Square of Number Is Equal to Product of Two Numbers

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1576 - Replace All ?'s to Avoid Consecutive Repeating Characters

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1575 - Count All Possible Routes

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1574 - Shortest Subarray to be Removed to Make Array Sorted

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1573 - Number of Ways to Split a String

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1572 - Matrix Diagonal Sum

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1571 - Warehouse Manager

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1570 - Dot Product of Two Sparse Vectors

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1569 - Number of Ways to Reorder Array to Get Same BST

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1568 - Minimum Number of Days to Disconnect Island

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1567 - Maximum Length of Subarray With Positive Product

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1566 - Detect Pattern of Length M Repeated K or More Times

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1565 - Unique Orders and Customers Per Month

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1564 - Put Boxes Into the Warehouse I

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1563 - Stone Game V

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1562 - Find Latest Group of Size M

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1561 - Maximum Number of Coins You Can Get

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1560 - Most Visited Sector in a Circular Track

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1559 - Detect Cycles in 2D Grid

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1558 - Minimum Numbers of Function Calls to Make Target Array

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1557 - Minimum Number of Vertices to Reach All Nodes

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1556 - Thousand Separator

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1555 - Bank Account Summary

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1554 - Strings Differ by One Character

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1553 - Minimum Number of Days to Eat N Oranges

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1552 - Magnetic Force Between Two Balls

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1551 - Minimum Operations to Make Array Equal

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1550 - Three Consecutive Odds

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1549 - The Most Recent Orders for Each Product

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1548 - The Most Similar Path in a Graph

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1547 - Minimum Cost to Cut a Stick

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1546 - Maximum Number of Non-Overlapping Subarrays With Sum Equals Target

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1545 - Find Kth Bit in Nth Binary String

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1544 - Make The String Great

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1543 - Fix Product Name Format

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1542 - Find Longest Awesome Substring

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1541 - Minimum Insertions to Balance a Parentheses String

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1540 - Can Convert String in K Moves

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1539 - Kth Missing Positive Number

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1538 - Guess the Majority in a Hidden Array

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1537 - Get the Maximum Score

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1536 - Minimum Swaps to Arrange a Binary Grid

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1535 - Find the Winner of an Array Game

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1534 - Count Good Triplets

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1533 - Find the Index of the Large Integer

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1532 - The Most Recent Three Orders

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1531 - String Compression II

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1530 - Number of Good Leaf Nodes Pairs

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1529 - Bulb Switcher IV

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1528 - Shuffle String

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1527 - Patients With a Condition

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1526 - Minimum Number of Increments on Subarrays to Form a Target Array

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1525 - Number of Good Ways to Split a String

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1524 - Number of Sub-arrays With Odd Sum

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1523 - Count Odd Numbers in an Interval Range

Posted on January 31, 2020

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1522 - Diameter of N-Ary Tree

Posted on January 30, 2020

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Tags: SQL

1521 - Find a Value of a Mysterious Function Closest to Target

Posted on January 29, 2020

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1520 - Maximum Number of Non-Overlapping Substrings

Posted on January 28, 2020

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1519 - Number of Nodes in the Sub-Tree With the Same Label

Posted on January 27, 2020

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1518 - Water Bottles

Posted on January 26, 2020

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1517 - Find Users With Valid E-Mails

Posted on January 25, 2020

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1516 - Move Sub-Tree of N-Ary Tree

Posted on January 24, 2020

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1515 - Best Position for a Service Centre

Posted on January 23, 2020

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1514 - Path with Maximum Probability

Posted on January 22, 2020

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1513 - Number of Substrings With Only 1s

Posted on January 21, 2020

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1512 - Number of Good Pairs

Posted on January 20, 2020

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1511 - Customer Order Frequency

Posted on January 19, 2020

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1510 - Stone Game IV

Posted on January 18, 2020

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1509 - Minimum Difference Between Largest and Smallest Value in Three Moves

Posted on January 17, 2020

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1508 - Range Sum of Sorted Subarray Sums

Posted on January 16, 2020

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1507 - Reformat Date

Posted on January 15, 2020

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1506 - Find Root of N-Ary Tree

Posted on January 14, 2020

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1505 - Minimum Possible Integer After at Most K Adjacent Swaps On Digits

Posted on January 13, 2020

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1504 - Count Submatrices With All Ones

Posted on January 12, 2020

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Tags: Google

1503 - Last Moment Before All Ants Fall Out of a Plank

Posted on January 11, 2020

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1502 - Can Make Arithmetic Progression From Sequence

Posted on January 10, 2020

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1501 - Countries You Can Safely Invest In

Posted on January 9, 2020

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Tags: SQL

1500 - Design a File Sharing System

Posted on January 8, 2020

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Tags: .Design .FollowUp

1499 - Max Value of Equation

Posted on January 7, 2020

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1498 - Number of Subsequences That Satisfy the Given Sum Condition

Posted on January 6, 2020

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1497 - Check If Array Pairs Are Divisible by k

Posted on January 5, 2020

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1496 - Path Crossing

Posted on January 4, 2020

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1495 - Friendly Movies Streamed Last Month

Posted on January 3, 2020

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1494 - Parallel Courses II

Posted on January 2, 2020

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Tags: Google .Star

1493 - Longest Subarray of 1's After Deleting One Element

Posted on January 1, 2020

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1492 - The kth Factor of n

Posted on December 31, 2019

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1491 - Average Salary Excluding the Minimum and Maximum Salary

Posted on December 30, 2019

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1490 - Clone N-ary Tree

Posted on December 29, 2019

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1489 - Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree

Posted on December 28, 2019

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1488 - Avoid Flood in The City

Posted on December 27, 2019

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1487 - Making File Names Unique

Posted on December 26, 2019

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1486 - XOR Operation in an Array

Posted on December 25, 2019

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1485 - Clone Binary Tree With Random Pointer

Posted on December 24, 2019

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Tags: Amazon

1484 - Group Sold Products By The Date

Posted on December 23, 2019

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1483 - Kth Ancestor of a Tree Node

Posted on December 22, 2019

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1482 - Minimum Number of Days to Make m Bouquets

Posted on December 21, 2019

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1481 - Least Number of Unique Integers after K Removals

Posted on December 20, 2019

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1480 - Running Sum of 1d Array

Posted on December 19, 2019

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1479 - Sales by Day of the Week

Posted on December 18, 2019

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Tags: Amazon .SQL

1478 - Allocate Mailboxes

Posted on December 17, 2019

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1477 - Find Two Non-overlapping Sub-arrays Each With Target Sum

Posted on December 16, 2019

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1476 - Subrectangle Queries

Posted on December 15, 2019

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1475 - Final Prices With a Special Discount in a Shop

Posted on December 14, 2019

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1474 - Delete N Nodes After M Nodes of a Linked List

Posted on December 13, 2019

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Tags: Microsoft

1473 - Paint House III

Posted on December 12, 2019

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1472 - Design Browser History

Posted on December 11, 2019

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Tags: .Design

1471 - The k Strongest Values in an Array

Posted on December 10, 2019

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1470 - Shuffle the Array

Posted on December 9, 2019

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Tags: Microsoft

1469 - Find All The Lonely Nodes

Posted on December 8, 2019

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Tags: Microsoft

1468 - Calculate Salaries

Posted on December 7, 2019

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Tags: Adobe Amazon Apple Facebook Google Microsoft Walmart Labs Yahoo .SQL

1467 - Probability of a Two Boxes Having The Same Number of Distinct Balls

Posted on December 6, 2019

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1466 - Reorder Routes to Make All Paths Lead to the City Zero

Posted on December 5, 2019

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1465 - Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts

Posted on December 4, 2019

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1464 - Maximum Product of Two Elements in an Array

Posted on December 3, 2019

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1463 - Cherry Pickup II

Posted on December 2, 2019

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1462 - Course Schedule IV

Posted on December 1, 2019

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1461 - Check If a String Contains All Binary Codes of Size K

Posted on November 30, 2019

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1460 - Make Two Arrays Equal by Reversing Sub-arrays

Posted on November 29, 2019

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1459 - Rectangles Area

Posted on November 28, 2019

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1458 - Max Dot Product of Two Subsequences

Posted on November 27, 2019

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1457 - Pseudo-Palindromic Paths in a Binary Tree

Posted on November 26, 2019

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1456 - Maximum Number of Vowels in a Substring of Given Length

Posted on November 25, 2019

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1455 - Check If a Word Occurs As a Prefix of Any Word in a Sentence

Posted on November 24, 2019

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1454 - Active Users

Posted on November 23, 2019

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1453 - Maximum Number of Darts Inside of a Circular Dartboard

Posted on November 22, 2019

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1452 - People Whose List of Favorite Companies Is Not a Subset of Another List

Posted on November 21, 2019

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1451 - Rearrange Words in a Sentence

Posted on November 20, 2019

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1450 - Number of Students Doing Homework at a Given Time

Posted on November 19, 2019

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1449 - Form Largest Integer With Digits That Add up to Target

Posted on November 18, 2019

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1448 - Count Good Nodes in Binary Tree

Posted on November 17, 2019

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1447 - Simplified Fractions

Posted on November 16, 2019

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1446 - Consecutive Characters

Posted on November 15, 2019

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1445 - Apples & Oranges

Posted on November 14, 2019

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1444 - Number of Ways of Cutting a Pizza

Posted on November 13, 2019

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1443 - Minimum Time to Collect All Apples in a Tree

Posted on November 12, 2019

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1442 - Count Triplets That Can Form Two Arrays of Equal XOR

Posted on November 11, 2019

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1441 - Build an Array With Stack Operations

Posted on November 10, 2019

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1440 - Evaluate Boolean Expression

Posted on November 9, 2019

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1439 - Find the Kth Smallest Sum of a Matrix With Sorted Rows

Posted on November 8, 2019

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1438 - Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit

Posted on November 7, 2019

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1437 - Check If All 1's Are at Least Length K Places Away

Posted on November 6, 2019

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1436 - Destination City

Posted on November 5, 2019

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1435 - Create a Session Bar Chart

Posted on November 4, 2019

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1434 - Number of Ways to Wear Different Hats to Each Other

Posted on November 3, 2019

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1433 - Check If a String Can Break Another String

Posted on November 2, 2019

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1432 - Max Difference You Can Get From Changing an Integer

Posted on November 1, 2019

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1431 - Kids With the Greatest Number of Candies

Posted on October 31, 2019

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1430 - Check If a String Is a Valid Sequence from Root to Leaves Path in a Binary Tree

Posted on October 30, 2019

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Tags: 23me

1429 - First Unique Number

Posted on October 29, 2019

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Tags: Amazon

1428 - Leftmost Column with at Least a One

Posted on October 28, 2019

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1427 - Perform String Shifts

Posted on October 27, 2019

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Tags: Goldman Sachs

1426 - Counting Elements

Posted on October 26, 2019

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Tags: DRW

1425 - Constrained Subsequence Sum

Posted on October 25, 2019

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1424 - Diagonal Traverse II

Posted on October 24, 2019

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1423 - Maximum Points You Can Obtain from Cards

Posted on October 23, 2019

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1422 - Maximum Score After Splitting a String

Posted on October 22, 2019

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1421 - NPV Queries

Posted on October 21, 2019

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1420 - Build Array Where You Can Find The Maximum Exactly K Comparisons

Posted on October 20, 2019

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1419 - Minimum Number of Frogs Croaking

Posted on October 19, 2019

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Tags: .Star

1418 - Display Table of Food Orders in a Restaurant

Posted on October 18, 2019

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1417 - Reformat The String

Posted on October 17, 2019

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1416 - Restore The Array

Posted on October 16, 2019

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1415 - The k-th Lexicographical String of All Happy Strings of Length n

Posted on October 15, 2019

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1414 - Find the Minimum Number of Fibonacci Numbers Whose Sum Is K

Posted on October 14, 2019

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1413 - Minimum Value to Get Positive Step by Step Sum

Posted on October 13, 2019

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1412 - Find the Quiet Students in All Exams

Posted on October 12, 2019

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Tags: Leetcode SQL

1411 - Number of Ways to Paint N * 3 Grid

Posted on October 11, 2019

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1410 - HTML Entity Parser

Posted on October 10, 2019

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Tags: Oracle

1409 - Queries on a Permutation With Key

Posted on October 9, 2019

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1408 - String Matching in an Array

Posted on October 8, 2019

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1407 - Top Travellers

Posted on October 7, 2019

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Tags: Leetcode SQL .SQL

1406 - Stone Game III

Posted on October 6, 2019

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1405 - Longest Happy String

Posted on October 5, 2019

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1404 - Number of Steps to Reduce a Number in Binary Representation to One

Posted on October 4, 2019

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1403 - Minimum Subsequence in Non-Increasing Order

Posted on October 3, 2019

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1402 - Reducing Dishes

Posted on October 2, 2019

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1401 - Circle and Rectangle Overlapping

Posted on October 1, 2019

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1400 - Construct K Palindrome Strings

Posted on September 30, 2019

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1399 - Count Largest Group

Posted on September 29, 2019

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1398 - Customers Who Bought Products A and B but Not C

Posted on September 28, 2019

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Tags: Facebook

1397 - Find All Good Strings

Posted on September 27, 2019

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1396 - Design Underground System

Posted on September 26, 2019

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Tags: .Design

1395 - Count Number of Teams

Posted on September 25, 2019

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1394 - Find Lucky Integer in an Array

Posted on September 24, 2019

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1393 - Capital Gain Loss

Posted on September 23, 2019

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Tags: SQL

1392 - Longest Happy Prefix

Posted on September 22, 2019

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1391 - Check if There is a Valid Path in a Grid

Posted on September 21, 2019

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1390 - Four Divisors

Posted on September 20, 2019

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1389 - Create Target Array in the Given Order

Posted on September 19, 2019

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1388 - Pizza With 3n Slices

Posted on September 18, 2019

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1387 - Sort Integers by The Power Value

Posted on September 17, 2019

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1386 - Cinema Seat Allocation

Posted on September 16, 2019

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1385 - Find the Distance Value Between Two Arrays

Posted on September 15, 2019

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1384 - Total Sales Amount by Year

Posted on September 14, 2019

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1383 - Maximum Performance of a Team

Posted on September 13, 2019

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1382 - Balance a Binary Search Tree

Posted on September 12, 2019

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1381 - Design a Stack With Increment Operation

Posted on September 11, 2019

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Tags: .Design

1380 - Lucky Numbers in a Matrix

Posted on September 10, 2019

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Tags: Oracle

1379 - Find a Corresponding Node of a Binary Tree in a Clone of That Tree

Posted on September 9, 2019

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1378 - Replace Employee ID With The Unique Identifier

Posted on September 8, 2019

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1377 - Frog Position After T Seconds

Posted on September 7, 2019

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1376 - Time Needed to Inform All Employees

Posted on September 6, 2019

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1375 - Bulb Switcher III

Posted on September 5, 2019

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1374 - Generate a String With Characters That Have Odd Counts

Posted on September 4, 2019

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1373 - Maximum Sum BST in Binary Tree

Posted on September 3, 2019

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1372 - Longest ZigZag Path in a Binary Tree

Posted on September 2, 2019

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1371 - Find the Longest Substring Containing Vowels in Even Counts

Posted on September 1, 2019

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1370 - Increasing Decreasing String

Posted on August 31, 2019

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Tags: Akuna Capital

1369 - Get the Second Most Recent Activity

Posted on August 30, 2019

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1368 - Minimum Cost to Make at Least One Valid Path in a Grid

Posted on August 29, 2019

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1367 - Linked List in Binary Tree

Posted on August 28, 2019

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1366 - Rank Teams by Votes

Posted on August 27, 2019

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1365 - How Many Numbers Are Smaller Than the Current Number

Posted on August 26, 2019

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1364 - Number of Trusted Contacts of a Customer

Posted on August 25, 2019

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Tags: Roblox

1363 - Largest Multiple of Three

Posted on August 24, 2019

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1362 - Closest Divisors

Posted on August 23, 2019

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1361 - Validate Binary Tree Nodes

Posted on August 22, 2019

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1360 - Number of Days Between Two Dates

Posted on August 21, 2019

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1359 - Count All Valid Pickup and Delivery Options

Posted on August 20, 2019

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1358 - Number of Substrings Containing All Three Characters

Posted on August 19, 2019

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1357 - Apply Discount Every n Orders

Posted on August 18, 2019

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1356 - Sort Integers by The Number of 1 Bits

Posted on August 17, 2019

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1355 - Activity Participants

Posted on August 16, 2019

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Tags: IBM

1354 - Construct Target Array With Multiple Sums

Posted on August 15, 2019

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1353 - Maximum Number of Events That Can Be Attended

Posted on August 14, 2019

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1352 - Product of the Last K Numbers

Posted on August 13, 2019

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1351 - Count Negative Numbers in a Sorted Matrix

Posted on August 12, 2019

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1350 - Students With Invalid Departments

Posted on August 11, 2019

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Tags: Amazon

1349 - Maximum Students Taking Exam

Posted on August 10, 2019

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1348 - Tweet Counts Per Frequency

Posted on August 9, 2019

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1347 - Minimum Number of Steps to Make Two Strings Anagram

Posted on August 8, 2019

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1346 - Check If N and Its Double Exist

Posted on August 7, 2019

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1345 - Jump Game IV

Posted on August 6, 2019

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Tags: .Star

1344 - Angle Between Hands of a Clock

Posted on August 5, 2019

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1343 - Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold

Posted on August 4, 2019

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1342 - Number of Steps to Reduce a Number to Zero

Posted on August 3, 2019

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1341 - Movie Rating

Posted on August 2, 2019

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Tags: SAP

1340 - Jump Game V

Posted on August 1, 2019

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1339 - Maximum Product of Splitted Binary Tree

Posted on July 31, 2019

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1338 - Reduce Array Size to The Half

Posted on July 30, 2019

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1337 - The K Weakest Rows in a Matrix

Posted on July 29, 2019

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1336 - Number of Transactions per Visit

Posted on July 28, 2019

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Tags: MachineZone

1335 - Minimum Difficulty of a Job Schedule

Posted on July 27, 2019

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1334 - Find the City With the Smallest Number of Neighbors at a Threshold Distance

Posted on July 26, 2019

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1333 - Filter Restaurants by Vegan-Friendly, Price and Distance

Posted on July 25, 2019

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1332 - Remove Palindromic Subsequences

Posted on July 24, 2019

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1331 - Rank Transform of an Array

Posted on July 23, 2019

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1330 - Reverse Subarray To Maximize Array Value

Posted on July 22, 2019

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1329 - Sort the Matrix Diagonally

Posted on July 21, 2019

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1328 - Break a Palindrome

Posted on July 20, 2019

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Tags: Expedia VMware

1327 - List the Products Ordered in a Period

Posted on July 19, 2019

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Tags: Amazon

1326 - Minimum Number of Taps to Open to Water a Garden

Posted on July 18, 2019

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1325 - Delete Leaves With a Given Value

Posted on July 17, 2019

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1324 - Print Words Vertically

Posted on July 16, 2019

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1323 - Maximum 69 Number

Posted on July 15, 2019

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1322 - Ads Performance

Posted on July 14, 2019

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Tags: Facebook

1321 - Restaurant Growth

Posted on July 13, 2019

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Tags: Point72

1320 - Minimum Distance to Type a Word Using Two Fingers

Posted on July 12, 2019

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1319 - Number of Operations to Make Network Connected

Posted on July 11, 2019

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1318 - Minimum Flips to Make a OR b Equal to c

Posted on July 10, 2019

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1317 - Convert Integer to the Sum of Two No-Zero Integers

Posted on July 9, 2019

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1316 - Distinct Echo Substrings

Posted on July 8, 2019

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1315 - Sum of Nodes with Even-Valued Grandparent

Posted on July 7, 2019

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1314 - Matrix Block Sum

Posted on July 6, 2019

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1313 - Decompress Run-Length Encoded List

Posted on July 5, 2019

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1312 - Minimum Insertion Steps to Make a String Palindrome

Posted on July 4, 2019

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1311 - Get Watched Videos by Your Friends

Posted on July 3, 2019

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1310 - XOR Queries of a Subarray

Posted on July 2, 2019

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1309 - Decrypt String from Alphabet to Integer Mapping

Posted on July 1, 2019

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1308 - Running Total for Different Genders

Posted on June 30, 2019

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1307 - Verbal Arithmetic Puzzle

Posted on June 29, 2019

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1306 - Jump Game III

Posted on June 28, 2019

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1305 - All Elements in Two Binary Search Trees

Posted on June 27, 2019

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1304 - Find N Unique Integers Sum up to Zero

Posted on June 26, 2019

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1303 - Find the Team Size

Posted on June 25, 2019

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Tags: Amazon

1302 - Deepest Leaves Sum

Posted on June 24, 2019

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1301 - Number of Paths with Max Score

Posted on June 23, 2019

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1300 - Sum of Mutated Array Closest to Target

Posted on June 22, 2019

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1299 - Replace Elements with Greatest Element on Right Side

Posted on June 21, 2019

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1298 - Maximum Candies You Can Get from Boxes

Posted on June 20, 2019

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1297 - Maximum Number of Occurrences of a Substring

Posted on June 19, 2019

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1296 - Divide Array in Sets of K Consecutive Numbers

Posted on June 18, 2019

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1295 - Find Numbers with Even Number of Digits

Posted on June 17, 2019

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1294 - Weather Type in Each Country

Posted on June 16, 2019

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1293 - Shortest Path in a Grid with Obstacles Elimination

Posted on June 15, 2019

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1292 - Maximum Side Length of a Square with Sum Less than or Equal to Threshold

Posted on June 14, 2019

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1291 - Sequential Digits

Posted on June 13, 2019

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1290 - Convert Binary Number in a Linked List to Integer

Posted on June 12, 2019

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1289 - Minimum Falling Path Sum II

Posted on June 11, 2019

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1288 - Remove Covered Intervals

Posted on June 10, 2019

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1287 - Element Appearing More Than 25% In Sorted Array

Posted on June 9, 2019

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1286 - Iterator for Combination

Posted on June 8, 2019

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1285 - Find the Start and End Number of Continuous Ranges

Posted on June 7, 2019

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Tags: Microsoft

1284 - Minimum Number of Flips to Convert Binary Matrix to Zero Matrix

Posted on June 6, 2019

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1283 - Find the Smallest Divisor Given a Threshold

Posted on June 5, 2019

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1282 - Group the People Given the Group Size They Belong To

Posted on June 4, 2019

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1281 - Subtract the Product and Sum of Digits of an Integer

Posted on June 3, 2019

Welcome to Subscribe On Youtube [Read More]

1280 - Students and Examinations

Posted on June 2, 2019

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Tags: SQL Roblox

1279 - Traffic Light Controlled Intersection

Posted on June 1, 2019

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Tags: Amazon .Star

1278 - Palindrome Partitioning III

Posted on May 31, 2019

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1277 - Count Square Submatrices with All Ones

Posted on May 30, 2019

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1276 - Number of Burgers with No Waste of Ingredients

Posted on May 29, 2019

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1275 - Find Winner on a Tic Tac Toe Game

Posted on May 28, 2019

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1274 - Number of Ships in a Rectangle

Posted on May 27, 2019

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Tags: Bloomberg

1273 - Delete Tree Nodes

Posted on May 26, 2019

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Tags: Microsoft

1272 - Remove Interval

Posted on May 25, 2019

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Tags: Google .Star

1271 - Hexspeak

Posted on May 24, 2019

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Tags: Virtu Financial

1270 - All People Report to the Given Manager

Posted on May 23, 2019

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Tags: Leetcode SQL Google .SQL

1269 - Number of Ways to Stay in the Same Place After Some Steps

Posted on May 22, 2019

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1268 - Search Suggestions System

Posted on May 21, 2019

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1267 - Count Servers that Communicate

Posted on May 20, 2019

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1266 - Minimum Time Visiting All Points

Posted on May 19, 2019

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1265 - Print Immutable Linked List in Reverse

Posted on May 18, 2019

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Tags: Google .Star

1264 - Page Recommendations

Posted on May 17, 2019

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Tags: Facebook

1263 - Minimum Moves to Move a Box to Their Target Location

Posted on May 16, 2019

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1262 - Greatest Sum Divisible by Three

Posted on May 15, 2019

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1261 - Find Elements in a Contaminated Binary Tree

Posted on May 14, 2019

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1260 - Shift 2D Grid

Posted on May 13, 2019

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1259 - Handshakes That Don't Cross

Posted on May 12, 2019

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Tags: Amazon

1258 - Synonymous Sentences

Posted on May 11, 2019

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Tags: Cruise Automation .Star

1257 - Smallest Common Region

Posted on May 10, 2019

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Tags: Airbnb

1256 - Encode Number

Posted on May 9, 2019

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Tags: Quora

1255 - Maximum Score Words Formed by Letters

Posted on May 8, 2019

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1254 - Number of Closed Islands

Posted on May 7, 2019

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1253 - Reconstruct a 2-Row Binary Matrix

Posted on May 6, 2019

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1252 - Cells with Odd Values in a Matrix

Posted on May 5, 2019

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1251 - Average Selling Price

Posted on May 4, 2019

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Tags: Amazon

1250 - Check If It Is a Good Array

Posted on May 3, 2019

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1249 - Minimum Remove to Make Valid Parentheses

Posted on May 2, 2019

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1248 - Count Number of Nice Subarrays

Posted on May 1, 2019

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1247 - Minimum Swaps to Make Strings Equal

Posted on April 30, 2019

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1246 - Palindrome Removal

Posted on April 29, 2019

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Tags: Microsoft

1245 - Tree Diameter

Posted on April 28, 2019

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Tags: Facebook Google

1244 - Design A Leaderboard

Posted on April 27, 2019

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Tags: Wayfair .Design

1243 - Array Transformation

Posted on April 26, 2019

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Tags: Virtu Financial

1242 - Web Crawler Multithreaded

Posted on April 25, 2019

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Tags: Dropbox Facebook .Star .Design

1241 - Number of Comments per Post

Posted on April 24, 2019

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1240 - Tiling a Rectangle with the Fewest Squares

Posted on April 23, 2019

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Tags: Google

1239 - Maximum Length of a Concatenated String with Unique Characters

Posted on April 22, 2019

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1238 - Circular Permutation in Binary Representation

Posted on April 21, 2019

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1237 - Find Positive Integer Solution for a Given Equation

Posted on April 20, 2019

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1236 - Web Crawler

Posted on April 19, 2019

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Tags: .Star .Design

1235 - Maximum Profit in Job Scheduling

Posted on April 18, 2019

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1234 - Replace the Substring for Balanced String

Posted on April 17, 2019

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1233 - Remove Sub-Folders from the Filesystem

Posted on April 16, 2019

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1232 - Check If It Is a Straight Line

Posted on April 15, 2019

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1231 - Divide Chocolate

Posted on April 14, 2019

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Tags: Google

1230 - Toss Strange Coins

Posted on April 13, 2019

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Tags: Twitch

1229 - Meeting Scheduler

Posted on April 12, 2019

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Tags: Amazon DoorDash Paypal pramp Uber .Star

1228 - Missing Number In Arithmetic Progression

Posted on April 11, 2019

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Tags: Audible

1227 - Airplane Seat Assignment Probability

Posted on April 10, 2019

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1226 - The Dining Philosophers

Posted on April 9, 2019

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1225 - Report Contiguous Dates

Posted on April 8, 2019

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Tags: Facebook

1224 - Maximum Equal Frequency

Posted on April 7, 2019

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1223 - Dice Roll Simulation

Posted on April 6, 2019

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1222 - Queens That Can Attack the King

Posted on April 5, 2019

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1221 - Split a String in Balanced Strings

Posted on April 4, 2019

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1220 - Count Vowels Permutation

Posted on April 3, 2019

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1219 - Path with Maximum Gold

Posted on April 2, 2019

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1218 - Longest Arithmetic Subsequence of Given Difference

Posted on April 1, 2019

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1217 - Minimum Cost to Move Chips to The Same Position

Posted on March 31, 2019

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1216 - Valid Palindrome III

Posted on March 30, 2019

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Tags: Facebook

1215 - Stepping Numbers

Posted on March 29, 2019

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Tags: Epic Systems

1214 - Two Sum BSTs

Posted on March 28, 2019

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Tags: Amazon

1213 - Intersection of Three Sorted Arrays

Posted on March 27, 2019

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Tags: Facebook TripAdvisor

1212 - Team Scores in Football Tournament

Posted on March 26, 2019

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1211 - Queries Quality and Percentage

Posted on March 25, 2019

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1210 - Minimum Moves to Reach Target with Rotations

Posted on March 24, 2019

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1209 - Remove All Adjacent Duplicates in String II

Posted on March 23, 2019

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1208 - Get Equal Substrings Within Budget

Posted on March 22, 2019

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1207 - Unique Number of Occurrences

Posted on March 21, 2019

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1206 - Design Skiplist

Posted on March 20, 2019

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Tags: .Design

1205 - Monthly Transactions II

Posted on March 19, 2019

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1204 - Last Person to Fit in the Elevator

Posted on March 18, 2019

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1203 - Sort Items by Groups Respecting Dependencies

Posted on March 17, 2019

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1202 - Smallest String With Swaps

Posted on March 16, 2019

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1201 - Ugly Number III

Posted on March 15, 2019

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1200 - Minimum Absolute Difference

Posted on March 14, 2019

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1199 - Minimum Time to Build Blocks

Posted on March 13, 2019

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Tags: Google

1198 - Find Smallest Common Element in All Rows

Posted on March 12, 2019

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Tags: Microsoft

1197 - Minimum Knight Moves

Posted on March 11, 2019

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1196 - How Many Apples Can You Put into the Basket

Posted on March 10, 2019

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1195 - Fizz Buzz Multithreaded

Posted on March 9, 2019

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Tags: .Star .Concurrency

1194 - Tournament Winners

Posted on March 8, 2019

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Tags: Wayfair

1193 - Monthly Transactions I

Posted on March 7, 2019

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1192 - Critical Connections in a Network

Posted on March 6, 2019

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1191 - K-Concatenation Maximum Sum

Posted on March 5, 2019

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1190 - Reverse Substrings Between Each Pair of Parentheses

Posted on March 4, 2019

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1189 - Maximum Number of Balloons

Posted on March 3, 2019

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1188 - Design Bounded Blocking Queue

Posted on March 2, 2019

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Tags: Amazon Cloudera Google LinkedIn Oracle Uber .Design .Concurrency

1187 - Make Array Strictly Increasing

Posted on March 1, 2019

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1186 - Maximum Subarray Sum with One Deletion

Posted on February 28, 2019

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1185 - Day of the Week

Posted on February 27, 2019

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1184 - Distance Between Bus Stops

Posted on February 26, 2019

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1183 - Maximum Number of Ones

Posted on February 25, 2019

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Tags: Qualcomm

1182 - Shortest Distance to Target Color

Posted on February 24, 2019

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Tags: Google

1181 - Before and After Puzzle

Posted on February 23, 2019

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1180 - Count Substrings with Only One Distinct Letter

Posted on February 22, 2019

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Tags: Virtu Financial

1179 - Reformat Department Table

Posted on February 21, 2019

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1178 - Number of Valid Words for Each Puzzle

Posted on February 20, 2019

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1177 - Can Make Palindrome from Substring

Posted on February 19, 2019

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1176 - Diet Plan Performance

Posted on February 18, 2019

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Tags: Amazon

1175 - Prime Arrangements

Posted on February 17, 2019

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1174 - Immediate Food Delivery II

Posted on February 16, 2019

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1173 - Immediate Food Delivery I

Posted on February 15, 2019

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1172 - Dinner Plate Stacks

Posted on February 14, 2019

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1171 - Remove Zero Sum Consecutive Nodes from Linked List

Posted on February 13, 2019

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1170 - Compare Strings by Frequency of the Smallest Character

Posted on February 12, 2019

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1169 - Invalid Transactions

Posted on February 11, 2019

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1168 - Optimize Water Distribution in a Village

Posted on February 10, 2019

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1167 - Minimum Cost to Connect Sticks

Posted on February 9, 2019

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Tags: Amazon Google

1166 - Design File System

Posted on February 8, 2019

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Tags: .Design Airbnb

1165 - Single-Row Keyboard

Posted on February 7, 2019

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Tags: Google

1164 - Product Price at a Given Date

Posted on February 6, 2019

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1163 - Last Substring in Lexicographical Order

Posted on February 5, 2019

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1162 - As Far from Land as Possible

Posted on February 4, 2019

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1161 - Maximum Level Sum of a Binary Tree

Posted on February 3, 2019

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1160 - Find Words That Can Be Formed by Characters

Posted on February 2, 2019

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1159 - Market Analysis II

Posted on February 1, 2019

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Tags: Poshmark

1158 - Market Analysis I

Posted on January 31, 2019

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Tags: Poshmark

1157 - Online Majority Element In Subarray

Posted on January 30, 2019

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1156 - Swap For Longest Repeated Character Substring

Posted on January 29, 2019

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Tags: Nutanix

1155 - Number of Dice Rolls With Target Sum

Posted on January 28, 2019

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1154 - Day of the Year

Posted on January 27, 2019

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1153 - String Transforms Into Another String

Posted on January 26, 2019

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Tags: Google

1152 - Analyze User Website Visit Pattern

Posted on January 25, 2019

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Tags: Amazon

1151 - Minimum Swaps to Group All 1's Together

Posted on January 24, 2019

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Tags: Expedia

1150 - Check If a Number Is Majority Element in a Sorted Array

Posted on January 23, 2019

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Tags: Salesforce

1149 - Article Views II

Posted on January 22, 2019

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1148 - Article Views I

Posted on January 21, 2019

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1147 - Longest Chunked Palindrome Decomposition

Posted on January 20, 2019

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1146 - Snapshot Array

Posted on January 19, 2019

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1145 - Binary Tree Coloring Game

Posted on January 18, 2019

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1144 - Decrease Elements To Make Array Zigzag

Posted on January 17, 2019

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1143 - Longest Common Subsequence

Posted on January 16, 2019

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1142 - User Activity for the Past 30 Days II

Posted on January 15, 2019

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Tags: Facebook

1141 - User Activity for the Past 30 Days I

Posted on January 14, 2019

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Tags: Facebook

1140 - Stone Game II

Posted on January 13, 2019

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1139 - Largest 1-Bordered Square

Posted on January 12, 2019

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1138 - Alphabet Board Path

Posted on January 11, 2019

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1137 - N-th Tribonacci Number

Posted on January 10, 2019

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1136 - Parallel Courses

Posted on January 9, 2019

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Tags: Graph Google Uber .Star

1135 - Connecting Cities With Minimum Cost

Posted on January 8, 2019

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Tags: Amazon Uber .Star

1134 - Armstrong Number

Posted on January 7, 2019

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Tags: Amazon

1133 - Largest Unique Number

Posted on January 6, 2019

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Tags: Amazon

1132 - Reported Posts II

Posted on January 5, 2019

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1131 - Maximum of Absolute Value Expression

Posted on January 4, 2019

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1130 - Minimum Cost Tree From Leaf Values

Posted on January 3, 2019

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1129 - Shortest Path with Alternating Colors

Posted on January 2, 2019

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1128 - Number of Equivalent Domino Pairs

Posted on January 1, 2019

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1127 - User Purchase Platform

Posted on December 31, 2018

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1126 - Active Businesses

Posted on December 30, 2018

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Tags: Yelp

1125 - Smallest Sufficient Team

Posted on December 29, 2018

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1124 - Longest Well-Performing Interval

Posted on December 28, 2018

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1123 - Lowest Common Ancestor of Deepest Leaves

Posted on December 27, 2018

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1122 - Relative Sort Array

Posted on December 26, 2018

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1121 - Divide Array Into Increasing Sequences

Posted on December 25, 2018

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Tags: Google

1120 - Maximum Average Subtree

Posted on December 24, 2018

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Tags: Amazon Atlassian

1119 - Remove Vowels from a String

Posted on December 23, 2018

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Tags: Amazon

1118 - Number of Days in a Month

Posted on December 22, 2018

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Tags: Amazon

1117 - Building H2O

Posted on December 21, 2018

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Tags: .Concurrency

1116 - Print Zero Even Odd

Posted on December 20, 2018

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Tags: .Concurrency

1115 - Print FooBar Alternately

Posted on December 19, 2018

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Tags: .Concurrency

1114 - Print in Order

Posted on December 18, 2018

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Tags: .Concurrency

1113 - Reported Posts

Posted on December 17, 2018

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Tags: SQL

1112 - Highest Grade For Each Student

Posted on December 16, 2018

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1111 - Maximum Nesting Depth of Two Valid Parentheses Strings

Posted on December 15, 2018

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1110 - Delete Nodes And Return Forest

Posted on December 14, 2018

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1109 - Corporate Flight Bookings

Posted on December 13, 2018

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1108 - Defanging an IP Address

Posted on December 12, 2018

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Tags: Adobe Amazon Apple Facebook Google

1107 - New Users Daily Count

Posted on December 11, 2018

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Tags: LinkedIn

1106 - Parsing A Boolean Expression

Posted on December 10, 2018

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1105 - Filling Bookcase Shelves

Posted on December 9, 2018

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1104 - Path In Zigzag Labelled Binary Tree

Posted on December 8, 2018

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1103 - Distribute Candies to People

Posted on December 7, 2018

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1102 - Path With Maximum Minimum Value

Posted on December 6, 2018

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Tags: Amazon

1101 - The Earliest Moment When Everyone Become Friends

Posted on December 5, 2018

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Tags: Expedia

1100 - Find K-Length Substrings With No Repeated Characters

Posted on December 4, 2018

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Tags: Amazon

1099 - Two Sum Less Than K

Posted on December 3, 2018

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1098 - Unpopular Books

Posted on December 2, 2018

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1097 - Game Play Analysis V

Posted on December 1, 2018

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1096 - Brace Expansion II

Posted on November 30, 2018

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1095 - Find in Mountain Array

Posted on November 29, 2018

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1094 - Car Pooling

Posted on November 28, 2018

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1093 - Statistics from a Large Sample

Posted on November 27, 2018

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1092 - Shortest Common Supersequence

Posted on November 26, 2018

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1091 - Shortest Path in Binary Matrix

Posted on November 25, 2018

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1090 - Largest Values From Labels

Posted on November 24, 2018

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1089 - Duplicate Zeros

Posted on November 23, 2018

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1088 - Confusing Number II

Posted on November 22, 2018

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1087 - Brace Expansion

Posted on November 21, 2018

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1086 - High Five

Posted on November 20, 2018

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Tags: Amazon Goldman Sachs

1085 - Sum of Digits in the Minimum Number

Posted on November 19, 2018

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1084 - Sales Analysis III

Posted on November 18, 2018

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Tags: .SQL

1083 - Sales Analysis II

Posted on November 17, 2018

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1082 - Sales Analysis I

Posted on November 16, 2018

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1081 - Smallest Subsequence of Distinct Characters

Posted on November 15, 2018

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Tags: FactSet

1080 - Insufficient Nodes in Root to Leaf Paths

Posted on November 14, 2018

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1079 - Letter Tile Possibilities

Posted on November 13, 2018

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1078 - Occurrences After Bigram

Posted on November 12, 2018

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1077 - Project Employees III

Posted on November 11, 2018

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1076 - Project Employees II

Posted on November 10, 2018

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Tags: .SQL

1075 - Project Employees I

Posted on November 9, 2018

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Tags: Facebook

1074 - Number of Submatrices That Sum to Target

Posted on November 8, 2018

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1073 - Adding Two Negabinary Numbers

Posted on November 7, 2018

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1072 - Flip Columns For Maximum Number of Equal Rows

Posted on November 6, 2018

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1071 - Greatest Common Divisor of Strings

Posted on November 5, 2018

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1070 - Product Sales Analysis III

Posted on November 4, 2018

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1069 - Product Sales Analysis II

Posted on November 3, 2018

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1068 - Product Sales Analysis I

Posted on November 2, 2018

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1067 - Digit Count in Range

Posted on November 1, 2018

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1066 - Campus Bikes II

Posted on October 31, 2018

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1065 - Index Pairs of a String

Posted on October 30, 2018

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1064 - Fixed Point

Posted on October 29, 2018

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1063 - Number of Valid Subarrays

Posted on October 28, 2018

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1062 - Longest Repeating Substring

Posted on October 27, 2018

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1061 - Lexicographically Smallest Equivalent String

Posted on October 26, 2018

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1060 - Missing Element in Sorted Array

Posted on October 25, 2018

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Tags: Amazon Apple Bloomberg Facebook Google

1059 - All Paths from Source Lead to Destination

Posted on October 24, 2018

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Tags: Google .Star

1058 - Minimize Rounding Error to Meet Target

Posted on October 23, 2018

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Tags: Airbnb

1057 - Campus Bikes

Posted on October 22, 2018

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1056 - Confusing Number

Posted on October 21, 2018

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Tags: Google

1055 - Shortest Way to Form String

Posted on October 20, 2018

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Tags: Google

1054 - Distant Barcodes

Posted on October 19, 2018

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1053 - Previous Permutation With One Swap

Posted on October 18, 2018

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1052 - Grumpy Bookstore Owner

Posted on October 17, 2018

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1051 - Height Checker

Posted on October 16, 2018

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1050 - Actors and Directors Who Cooperated At Least Three Times

Posted on October 15, 2018

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Tags: Amazon

1049 - Last Stone Weight II

Posted on October 14, 2018

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1048 - Longest String Chain

Posted on October 13, 2018

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1047 - Remove All Adjacent Duplicates In String

Posted on October 12, 2018

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1046 - Last Stone Weight

Posted on October 11, 2018

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1045 - Customers Who Bought All Products

Posted on October 10, 2018

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1044 - Longest Duplicate Substring

Posted on October 9, 2018

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1043 - Partition Array for Maximum Sum

Posted on October 8, 2018

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1042 - Flower Planting With No Adjacent

Posted on October 7, 2018

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1041 - Robot Bounded In Circle

Posted on October 6, 2018

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1040 - Moving Stones Until Consecutive II

Posted on October 5, 2018

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1039 - Minimum Score Triangulation of Polygon

Posted on October 4, 2018

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1038 - Binary Search Tree to Greater Sum Tree

Posted on October 3, 2018

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1037 - Valid Boomerang

Posted on October 2, 2018

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1036 - Escape a Large Maze

Posted on October 1, 2018

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1035 - Uncrossed Lines

Posted on September 30, 2018

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1034 - Coloring A Border

Posted on September 29, 2018

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1033 - Moving Stones Until Consecutive

Posted on September 28, 2018

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1032 - Stream of Characters

Posted on September 27, 2018

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1031 - Maximum Sum of Two Non-Overlapping Subarrays

Posted on September 26, 2018

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1030 - Matrix Cells in Distance Order

Posted on September 25, 2018

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1029 - Two City Scheduling

Posted on September 24, 2018

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1028 - Recover a Tree From Preorder Traversal

Posted on September 23, 2018

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1027 - Longest Arithmetic Subsequence

Posted on September 22, 2018

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1026 - Maximum Difference Between Node and Ancestor

Posted on September 21, 2018

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1025 - Divisor Game

Posted on September 20, 2018

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1024 - Video Stitching

Posted on September 19, 2018

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1023 - Camelcase Matching

Posted on September 18, 2018

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1022 - Sum of Root To Leaf Binary Numbers

Posted on September 17, 2018

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1021 - Remove Outermost Parentheses

Posted on September 16, 2018

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1020 - Number of Enclaves

Posted on September 15, 2018

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1019 - Next Greater Node In Linked List

Posted on September 14, 2018

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1018 - Binary Prefix Divisible By 5

Posted on September 13, 2018

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1017 - Convert to Base -2

Posted on September 12, 2018

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1016 - Binary String With Substrings Representing 1 To N

Posted on September 11, 2018

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1015 - Smallest Integer Divisible by K

Posted on September 10, 2018

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1014 - Best Sightseeing Pair

Posted on September 9, 2018

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1013 - Partition Array Into Three Parts With Equal Sum

Posted on September 8, 2018

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1012 - Numbers With Repeated Digits

Posted on September 7, 2018

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1011 - Capacity To Ship Packages Within D Days

Posted on September 6, 2018

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1010 - Pairs of Songs With Total Durations Divisible by 60

Posted on September 5, 2018

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1009 - Complement of Base 10 Integer

Posted on September 4, 2018

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1008 - Construct Binary Search Tree from Preorder Traversal

Posted on September 3, 2018

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1007 - Minimum Domino Rotations For Equal Row

Posted on September 2, 2018

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Tags: Amazon Google

1006 - Clumsy Factorial

Posted on September 1, 2018

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1005 - Maximize Sum Of Array After K Negations

Posted on August 31, 2018

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Tags: C++ Easy

1004 - Max Consecutive Ones III

Posted on August 30, 2018

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Tags: .Star

1003 - Check If Word Is Valid After Substitutions

Posted on August 29, 2018

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1002 - Find Common Characters

Posted on August 28, 2018

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Tags: C++ Easy HashMap

1001 - Grid Illumination

Posted on August 27, 2018

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1000 - Minimum Cost to Merge Stones

Posted on August 26, 2018

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999 - Available Captures for Rook

Posted on August 25, 2018

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Tags: C++ Easy

998 - Maximum Binary Tree II

Posted on August 24, 2018

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997 - Find the Town Judge

Posted on August 23, 2018

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Tags: C++ Easy HashMap

996 - Number of Squareful Arrays

Posted on August 22, 2018

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995 - Minimum Number of K Consecutive Bit Flips

Posted on August 21, 2018

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994 - Rotting Oranges

Posted on August 20, 2018

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Tags: Amazon Flipkart

993 - Cousins in Binary Tree

Posted on August 19, 2018

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Tags: C++ Easy

992 - Subarrays with K Different Integers

Posted on August 18, 2018

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991 - Broken Calculator

Posted on August 17, 2018

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990 - Satisfiability of Equality Equations

Posted on August 16, 2018

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989 - Add to Array-Form of Integer

Posted on August 15, 2018

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Tags: C++ Easy

988 - Smallest String Starting From Leaf

Posted on August 14, 2018

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987 - Vertical Order Traversal of a Binary Tree

Posted on August 13, 2018

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