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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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3292 - Minimum Number of Valid Strings to Form Target II

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3291 - Minimum Number of Valid Strings to Form Target I

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3290 - Maximum Multiplication Score

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3289 - The Two Sneaky Numbers of Digitville

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3288 - Length of the Longest Increasing Path

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3287 - Find the Maximum Sequence Value of Array

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3286 - Find a Safe Walk Through a Grid

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3285 - Find Indices of Stable Mountains

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3284 - Sum of Consecutive Subarrays

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3283 - Maximum Number of Moves to Kill All Pawns

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3282 - Reach End of Array With Max Score

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3281 - Maximize Score of Numbers in Ranges

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3280 - Convert Date to Binary

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3279 - Maximum Total Area Occupied by Pistons

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3278 - Find Candidates for Data Scientist Position II

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3277 - Maximum XOR Score Subarray Queries

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3276 - Select Cells in Grid With Maximum Score

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3275 - K-th Nearest Obstacle Queries

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3274 - Check if Two Chessboard Squares Have the Same Color

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3273 - Minimum Amount of Damage Dealt to Bob

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3272 - Find the Count of Good Integers

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3271 - Hash Divided String

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3270 - Find the Key of the Numbers

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3269 - Constructing Two Increasing Arrays

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3268 - Find Overlapping Shifts II

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3267 - Count Almost Equal Pairs II

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3266 - Final Array State After K Multiplication Operations II

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3265 - Count Almost Equal Pairs I

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3264 - Final Array State After K Multiplication Operations I

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3263 - Convert Doubly Linked List to Array I

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3262 - Find Overlapping Shifts

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3261 - Count Substrings That Satisfy K-Constraint II

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3260 - Find the Largest Palindrome Divisible by K

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3259 - Maximum Energy Boost From Two Drinks

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3258 - Count Substrings That Satisfy K-Constraint I

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3257 - Maximum Value Sum by Placing Three Rooks II

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3256 - Maximum Value Sum by Placing Three Rooks I

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3255 - Find the Power of K-Size Subarrays II

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3254 - Find the Power of K-Size Subarrays I

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3253 - Construct String with Minimum Cost (Easy)

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3252 - Premier League Table Ranking II

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3251 - Find the Count of Monotonic Pairs II

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3250 - Find the Count of Monotonic Pairs I

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3249 - Count the Number of Good Nodes

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3248 - Snake in Matrix

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3247 - Number of Subsequences with Odd Sum

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3246 - Premier League Table Ranking

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3245 - Alternating Groups III

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3244 - Shortest Distance After Road Addition Queries II

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3243 - Shortest Distance After Road Addition Queries I

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3242 - Design Neighbor Sum Service

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3241 - Time Taken to Mark All Nodes

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3240 - Minimum Number of Flips to Make Binary Grid Palindromic II

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3239 - Minimum Number of Flips to Make Binary Grid Palindromic I

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3238 - Find the Number of Winning Players

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3237 - Alt and Tab Simulation

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3236 - CEO Subordinate Hierarchy

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3235 - Check if the Rectangle Corner Is Reachable

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3234 - Count the Number of Substrings With Dominant Ones

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3233 - Find the Count of Numbers Which Are Not Special

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3232 - Find if Digit Game Can Be Won

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3231 - Minimum Number of Increasing Subsequence to Be Removed

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3230 - Customer Purchasing Behavior Analysis

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3229 - Minimum Operations to Make Array Equal to Target

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3228 - Maximum Number of Operations to Move Ones to the End

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3227 - Vowels Game in a String

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3226 - Number of Bit Changes to Make Two Integers Equal

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3225 - Maximum Score From Grid Operations

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3224 - Minimum Array Changes to Make Differences Equal

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3223 - Minimum Length of String After Operations

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3222 - Find the Winning Player in Coin Game

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3221 - Maximum Array Hopping Score II

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3220 - Odd and Even Transactions

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3219 - Minimum Cost for Cutting Cake II

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3218 - Minimum Cost for Cutting Cake I

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3217 - Delete Nodes From Linked List Present in Array

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3216 - Lexicographically Smallest String After a Swap

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3215 - Count Triplets with Even XOR Set Bits II

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3214 - Year on Year Growth Rate

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3213 - Construct String with Minimum Cost

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3212 - Count Submatrices With Equal Frequency of X and Y

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3211 - Generate Binary Strings Without Adjacent Zeros

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3210 - Find the Encrypted String

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3209 - Number of Subarrays With AND Value of K

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3208 - Alternating Groups II

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3207 - Maximum Points After Enemy Battles

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3206 - Alternating Groups I

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3205 - Maximum Array Hopping Score I

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3204 - Bitwise User Permissions Analysis

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3203 - Find Minimum Diameter After Merging Two Trees

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3202 - Find the Maximum Length of Valid Subsequence II

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3201 - Find the Maximum Length of Valid Subsequence I

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3200 - Maximum Height of a Triangle

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3199 - Count Triplets with Even XOR Set Bits I

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3198 - Find Cities in Each State

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3197 - Find the Minimum Area to Cover All Ones II

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3196 - Maximize Total Cost of Alternating Subarrays

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3195 - Find the Minimum Area to Cover All Ones I

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3194 - Minimum Average of Smallest and Largest Elements

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3193 - Count the Number of Inversions

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3192 - Minimum Operations to Make Binary Array Elements Equal to One II

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3191 - Minimum Operations to Make Binary Array Elements Equal to One I

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3190 - Find Minimum Operations to Make All Elements Divisible by Three

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3189 - Minimum Moves to Get a Peaceful Board

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3188 - Find Top Scoring Students II

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3187 - Peaks in Array

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3186 - Maximum Total Damage With Spell Casting

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3185 - Count Pairs That Form a Complete Day II

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3184 - Count Pairs That Form a Complete Day I

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3183 - The Number of Ways to Make the Sum

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3182 - Find Top Scoring Students

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3181 - Maximum Total Reward Using Operations II

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3180 - Maximum Total Reward Using Operations I

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3179 - Find the N-th Value After K Seconds

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3178 - Find the Child Who Has the Ball After K Seconds

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3177 - Find the Maximum Length of a Good Subsequence II

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3176 - Find the Maximum Length of a Good Subsequence I

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3175 - Find The First Player to win K Games in a Row

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3174 - Clear Digits

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3173 - Bitwise OR of Adjacent Elements

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3172 - Second Day Verification

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3171 - Find Subarray With Bitwise OR Closest to K

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3170 - Lexicographically Minimum String After Removing Stars

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3169 - Count Days Without Meetings

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3168 - Minimum Number of Chairs in a Waiting Room

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3167 - Better Compression of String

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3166 - Calculate Parking Fees and Duration

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3165 - Maximum Sum of Subsequence With Non-adjacent Elements

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3164 - Find the Number of Good Pairs II

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3163 - String Compression III

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3162 - Find the Number of Good Pairs I

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3161 - Block Placement Queries

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3160 - Find the Number of Distinct Colors Among the Balls

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3159 - Find Occurrences of an Element in an Array

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3158 - Find the XOR of Numbers Which Appear Twice

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3157 - Find the Level of Tree with Minimum Sum

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3156 - Employee Task Duration and Concurrent Tasks

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3155 - Maximum Number of Upgradable Servers

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3154 - Find Number of Ways to Reach the K-th Stair

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3153 - Sum of Digit Differences of All Pairs

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3152 - Special Array II

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3151 - Special Array I

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3150 - Invalid Tweets II

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3149 - Find the Minimum Cost Array Permutation

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3148 - Maximum Difference Score in a Grid

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3147 - Taking Maximum Energy From the Mystic Dungeon

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3146 - Permutation Difference between Two Strings

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3145 - Find Products of Elements of Big Array

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3144 - Minimum Substring Partition of Equal Character Frequency

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3143 - Maximum Points Inside the Square

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3142 - Check if Grid Satisfies Conditions

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3141 - Maximum Hamming Distances

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3140 - Consecutive Available Seats II

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3139 - Minimum Cost to Equalize Array

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3138 - Minimum Length of Anagram Concatenation

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3137 - Minimum Number of Operations to Make Word K-Periodic

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3136 - Valid Word

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3135 - Equalize Strings by Adding or Removing Characters at Ends

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3134 - Find the Median of the Uniqueness Array

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3133 - Minimum Array End

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3132 - Find the Integer Added to Array II

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3131 - Find the Integer Added to Array I

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3130 - Find All Possible Stable Binary Arrays II

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3129 - Find All Possible Stable Binary Arrays I

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3128 - Right Triangles

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3127 - Make a Square with the Same Color

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3126 - Server Utilization Time

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3125 - Maximum Number That Makes Result of Bitwise AND Zero

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3124 - Find Longest Calls

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3123 - Find Edges in Shortest Paths

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3122 - Minimum Number of Operations to Satisfy Conditions

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3121 - Count the Number of Special Characters II

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3120 - Count the Number of Special Characters I

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3119 - Maximum Number of Potholes That Can Be Fixed

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3118 - Friday Purchase III

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3117 - Minimum Sum of Values by Dividing Array

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3116 - Kth Smallest Amount With Single Denomination Combination

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3115 - Maximum Prime Difference

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3114 - Latest Time You Can Obtain After Replacing Characters

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3113 - Find the Number of Subarrays Where Boundary Elements Are Maximum

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3112 - Minimum Time to Visit Disappearing Nodes

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3111 - Minimum Rectangles to Cover Points

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3110 - Score of a String

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3109 - Find the Index of Permutation

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3108 - Minimum Cost Walk in Weighted Graph

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3107 - Minimum Operations to Make Median of Array Equal to K

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3106 - Lexicographically Smallest String After Operations With Constraint

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3105 - Longest Strictly Increasing or Strictly Decreasing Subarray

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3104 - Find Longest Self-Contained Substring

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3103 - Find Trending Hashtags II

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3102 - Minimize Manhattan Distances

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3101 - Count Alternating Subarrays

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3100 - Water Bottles II

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3099 - Harshad Number

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3098 - Find the Sum of Subsequence Powers

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3097 - Shortest Subarray With OR at Least K II

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3096 - Minimum Levels to Gain More Points

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3095 - Shortest Subarray With OR at Least K I

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3094 - Guess the Number Using Bitwise Questions II

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3093 - Longest Common Suffix Queries

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3092 - Most Frequent IDs

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3091 - Apply Operations to Make Sum of Array Greater Than or Equal to k

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3090 - Maximum Length Substring With Two Occurrences

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3089 - Find Bursty Behavior

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3088 - Make String Anti-palindrome

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3087 - Find Trending Hashtags

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3086 - Minimum Moves to Pick K Ones

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3085 - Minimum Deletions to Make String K-Special

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3084 - Count Substrings Starting and Ending with Given Character

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3083 - Existence of a Substring in a String and Its Reverse

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3082 - Find the Sum of the Power of All Subsequences

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3081 - Replace Question Marks in String to Minimize Its Value

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3080 - Mark Elements on Array by Performing Queries

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3079 - Find the Sum of Encrypted Integers

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3078 - Match Alphanumerical Pattern in Matrix I

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3077 - Maximum Strength of K Disjoint Subarrays

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3076 - Shortest Uncommon Substring in an Array

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3075 - Maximize Happiness of Selected Children

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3074 - Apple Redistribution into Boxes

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3073 - Maximum Increasing Triplet Value

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3072 - Distribute Elements Into Two Arrays II

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3071 - Minimum Operations to Write the Letter Y on a Grid

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3070 - Count Submatrices with Top-Left Element and Sum Less Than k

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3069 - Distribute Elements Into Two Arrays I

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3068 - Find the Maximum Sum of Node Values

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3067 - Count Pairs of Connectable Servers in a Weighted Tree Network

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3066 - Minimum Operations to Exceed Threshold Value II

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3065 - Minimum Operations to Exceed Threshold Value I

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3064 - Guess the Number Using Bitwise Questions I

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3063 - Linked List Frequency

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3062 - Winner of the Linked List Game

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3061 - Calculate Trapping Rain Water

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3060 - User Activities within Time Bounds

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3059 - Find All Unique Email Domains

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3058 - Friends With No Mutual Friends

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3057 - Employees Project Allocation

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3056 - Snaps Analysis

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3055 - Top Percentile Fraud

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3054 - Binary Tree Nodes

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3053 - Classifying Triangles by Lengths

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3052 - Maximize Items

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3051 - Find Candidates for Data Scientist Position

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3050 - Pizza Toppings Cost Analysis

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3049 - Earliest Second to Mark Indices II

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3048 - Earliest Second to Mark Indices I

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3047 - Find the Largest Area of Square Inside Two Rectangles

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3046 - Split the Array

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3045 - Count Prefix and Suffix Pairs II

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3044 - Most Frequent Prime

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3043 - Find the Length of the Longest Common Prefix

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3042 - Count Prefix and Suffix Pairs I

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3041 - Maximize Consecutive Elements in an Array After Modification

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3040 - Maximum Number of Operations With the Same Score II

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3039 - Apply Operations to Make String Empty

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3038 - Maximum Number of Operations With the Same Score I

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3037 - Find Pattern in Infinite Stream II

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3036 - Number of Subarrays That Match a Pattern II

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3035 - Maximum Palindromes After Operations

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3034 - Number of Subarrays That Match a Pattern I

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3033 - Modify the Matrix

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3032 - Count Numbers With Unique Digits II

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3031 - Minimum Time to Revert Word to Initial State II

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3030 - Find the Grid of Region Average

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3029 - Minimum Time to Revert Word to Initial State I

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3028 - Ant on the Boundary

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3027 - Find the Number of Ways to Place People II

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3026 - Maximum Good Subarray Sum

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3025 - Find the Number of Ways to Place People I

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3024 - Type of Triangle II

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3023 - Find Pattern in Infinite Stream I

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3022 - Minimize OR of Remaining Elements Using Operations

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3021 - Alice and Bob Playing Flower Game

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3020 - Find the Maximum Number of Elements in Subset

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3019 - Number of Changing Keys

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3018 - Maximum Number of Removal Queries That Can Be Processed I

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3017 - Count the Number of Houses at a Certain Distance II

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3016 - Minimum Number of Pushes to Type Word II

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3015 - Count the Number of Houses at a Certain Distance I

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3013 - Divide an Array Into Subarrays With Minimum Cost II

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3012 - Minimize Length of Array Using Operations

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908 - Smallest Range I

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3011 - Find if Array Can Be Sorted

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3010 - Divide an Array Into Subarrays With Minimum Cost I

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3009 - Maximum Number of Intersections on the Chart

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3008 - Find Beautiful Indices in the Given Array II

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3005 - Count Elements With Maximum Frequency

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3007 - Maximum Number That Sum of the Prices Is Less Than or Equal to K

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3004 - Maximum Subtree of the Same Color

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3006 - Find Beautiful Indices in the Given Array I

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3003 - Maximize the Number of Partitions After Operations

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3002 - Maximum Size of a Set After Removals

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3001 - Minimum Moves to Capture The Queen

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2985 - Calculate Compressed Mean

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2969 - Minimum Number of Coins for Fruits II

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3000 - Maximum Area of Longest Diagonal Rectangle

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2984 - Find Peak Calling Hours for Each City

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2968 - Apply Operations to Maximize Frequency Score

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2999 - Count the Number of Powerful Integers

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2983 - Palindrome Rearrangement Queries

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2967 - Minimum Cost to Make Array Equalindromic

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2998 - Minimum Number of Operations to Make X and Y Equal

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2982 - Find Longest Special Substring That Occurs Thrice II

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2966 - Divide Array Into Arrays With Max Difference

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2997 - Minimum Number of Operations to Make Array XOR Equal to K

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2981 - Find Longest Special Substring That Occurs Thrice I

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2965 - Find Missing and Repeated Values

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2996 - Smallest Missing Integer Greater Than Sequential Prefix Sum

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2980 - Check if Bitwise OR Has Trailing Zeros

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2964 - Number of Divisible Triplet Sums

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2995 - Viewers Turned Streamers

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2979 - Most Expensive Item That Can Not Be Bought

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2963 - Count the Number of Good Partitions

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2994 - Friday Purchases II

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2978 - Symmetric Coordinates

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2962 - Count Subarrays Where Max Element Appears at Least K Times

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2993 - Friday Purchases I

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2977 - Minimum Cost to Convert String II

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2961 - Double Modular Exponentiation

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2992 - Number of Self-Divisible Permutations

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2976 - Minimum Cost to Convert String I

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2960 - Count Tested Devices After Test Operations

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2991 - Top Three Wineries

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2975 - Maximum Square Area by Removing Fences From a Field

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2959 - Number of Possible Sets of Closing Branches

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2990 - Loan Types

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2974 - Minimum Number Game

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2958 - Length of Longest Subarray With at Most K Frequency

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2989 - Class Performance

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2973 - Find Number of Coins to Place in Tree Nodes

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2957 - Remove Adjacent Almost-Equal Characters

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2988 - Manager of the Largest Department

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2972 - Count the Number of Incremovable Subarrays II

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2956 - Find Common Elements Between Two Arrays

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2987 - Find Expensive Cities

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2971 - Find Polygon With the Largest Perimeter

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2955 - Number of Same-End Substrings

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2986 - Find Third Transaction

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2970 - Count the Number of Incremovable Subarrays I

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2954 - Count the Number of Infection Sequences

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2953 - Count Complete Substrings

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2952 - Minimum Number of Coins to be Added

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2951 - Find the Peaks

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2950 - Number of Divisible Substrings

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2949 - Count Beautiful Substrings II

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2948 - Make Lexicographically Smallest Array by Swapping Elements

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2947 - Count Beautiful Substrings I

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2946 - Matrix Similarity After Cyclic Shifts

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2945 - Find Maximum Non-decreasing Array Length

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2944 - Minimum Number of Coins for Fruits

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2943 - Maximize Area of Square Hole in Grid

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2942 - Find Words Containing Character

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2941 - Maximum GCD-Sum of a Subarray

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2940 - Find Building Where Alice and Bob Can Meet

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2939 - Maximum Xor Product

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2938 - Separate Black and White Balls

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2937 - Make Three Strings Equal

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2936 - Number of Equal Numbers Blocks

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2935 - Maximum Strong Pair XOR II

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2934 - Minimum Operations to Maximize Last Elements in Arrays

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2933 - High-Access Employees

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2932 - Maximum Strong Pair XOR I

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2931 - Maximum Spending After Buying Items

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2930 - Number of Strings Which Can Be Rearranged to Contain Substring

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2929 - Distribute Candies Among Children II

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2928 - Distribute Candies Among Children I

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2927 - Distribute Candies Among Children III

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2926 - Maximum Balanced Subsequence Sum

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2925 - Maximum Score After Applying Operations on a Tree

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2924 - Find Champion II

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2923 - Find Champion I

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2922 - Market Analysis III

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2921 - Maximum Profitable Triplets With Increasing Prices II

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2920 - Maximum Points After Collecting Coins From All Nodes

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2919 - Minimum Increment Operations to Make Array Beautiful

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2918 - Minimum Equal Sum of Two Arrays After Replacing Zeros

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2917 - Find the K-or of an Array

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2916 - Subarrays Distinct Element Sum of Squares II

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2915 - Length of the Longest Subsequence That Sums to Target

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2914 - Minimum Number of Changes to Make Binary String Beautiful

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2913 - Subarrays Distinct Element Sum of Squares I

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2912 - Number of Ways to Reach Destination in the Grid

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2911 - Minimum Changes to Make K Semi-palindromes

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2910 - Minimum Number of Groups to Create a Valid Assignment

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2909 - Minimum Sum of Mountain Triplets II

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2908 - Minimum Sum of Mountain Triplets I

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2907 - Maximum Profitable Triplets With Increasing Prices I

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2906 - Construct Product Matrix

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2905 - Find Indices With Index and Value Difference II

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2904 - Shortest and Lexicographically Smallest Beautiful String

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2903 - Find Indices With Index and Value Difference I

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2902 - Count of Sub-Multisets With Bounded Sum

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2901 - Longest Unequal Adjacent Groups Subsequence II

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2900 - Longest Unequal Adjacent Groups Subsequence I

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2899 - Last Visited Integers

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2898 - Maximum Linear Stock Score

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2897 - Apply Operations on Array to Maximize Sum of Squares

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2896 - Apply Operations to Make Two Strings Equal

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2895 - Minimum Processing Time

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2894 - Divisible and Non-divisible Sums Difference

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2893 - Calculate Orders Within Each Interval

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2892 - Minimizing Array After Replacing Pairs With Their Product

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2891 - Method Chaining

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2890 - Reshape Data Melt

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2889 - Reshape Data Pivot

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2888 - Reshape Data Concatenate

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2887 - Fill Missing Data

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2886 - Change Data Type

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2885 - Rename Columns

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2884 - Modify Columns

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2883 - Drop Missing Data

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2882 - Drop Duplicate Rows

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2881 - Create a New Column

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2880 - Select Data

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2879 - Display the First Three Rows

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2878 - Get the Size of a DataFrame

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2877 - Create a DataFrame from List

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2876 - Count Visited Nodes in a Directed Graph

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2875 - Minimum Size Subarray in Infinite Array

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2874 - Maximum Value of an Ordered Triplet II

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2873 - Maximum Value of an Ordered Triplet I

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2872 - Maximum Number of K-Divisible Components

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2871 - Split Array Into Maximum Number of Subarrays

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2870 - Minimum Number of Operations to Make Array Empty

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2869 - Minimum Operations to Collect Elements

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2868 - The Wording Game

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2867 - Count Valid Paths in a Tree

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2866 - Beautiful Towers II

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2865 - Beautiful Towers I

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2864 - Maximum Odd Binary Number

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2863 - Maximum Length of Semi-Decreasing Subarrays

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2862 - Maximum Element-Sum of a Complete Subset of Indices

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2861 - Maximum Number of Alloys

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2860 - Happy Students

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2859 - Sum of Values at Indices With K Set Bits

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2858 - Minimum Edge Reversals So Every Node Is Reachable

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2857 - Count Pairs of Points With Distance k

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2856 - Minimum Array Length After Pair Removals

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2855 - Minimum Right Shifts to Sort the Array

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2854 - Rolling Average Steps

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2853 - Highest Salaries Difference

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2852 - Sum of Remoteness of All Cells

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2851 - String Transformation

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2850 - Minimum Moves to Spread Stones Over Grid

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2849 - Determine if a Cell Is Reachable at a Given Time

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2848 - Points That Intersect With Cars

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2847 - Smallest Number With Given Digit Product

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2846 - Minimum Edge Weight Equilibrium Queries in a Tree

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2845 - Count of Interesting Subarrays

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2844 - Minimum Operations to Make a Special Number

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2843 - Count Symmetric Integers

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2842 - Count K-Subsequences of a String With Maximum Beauty

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2841 - Maximum Sum of Almost Unique Subarray

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2840 - Check if Strings Can be Made Equal With Operations II

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2839 - Check if Strings Can be Made Equal With Operations I

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2838 - Maximum Coins Heroes Can Collect

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2837 - Total Traveled Distance

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2836 - Maximize Value of Function in a Ball Passing Game

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2835 - Minimum Operations to Form Subsequence With Target Sum

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2834 - Find the Minimum Possible Sum of a Beautiful Array

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2833 - Furthest Point From Origin

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2832 - Maximal Range That Each Element Is Maximum in It

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2831 - Find the Longest Equal Subarray

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2830 - Maximize the Profit as the Salesman

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2829 - Determine the Minimum Sum of a k-avoiding Array

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2828 - Check if a String Is an Acronym of Words

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2827 - Number of Beautiful Integers in the Range

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2826 - Sorting Three Groups

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2825 - Make String a Subsequence Using Cyclic Increments

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2824 - Count Pairs Whose Sum is Less than Target

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2823 - Deep Object Filter

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2822 - Inversion of Object

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2821 - Delay the Resolution of Each Promise

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2820 - Election Results

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2819 - Minimum Relative Loss After Buying Chocolates

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2818 - Apply Operations to Maximize Score

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2817 - Minimum Absolute Difference Between Elements With Constraint

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2816 - Double a Number Represented as a Linked List

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2815 - Max Pair Sum in an Array

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2814 - Minimum Time Takes to Reach Destination Without Drowning

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2813 - Maximum Elegance of a K-Length Subsequence

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2812 - Find the Safest Path in a Grid

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2811 - Check if it is Possible to Split Array

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2810 - Faulty Keyboard

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2809 - Minimum Time to Make Array Sum At Most x

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2808 - Minimum Seconds to Equalize a Circular Array

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2807 - Insert Greatest Common Divisors in Linked List

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2806 - Account Balance After Rounded Purchase

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2805 - Custom Interval

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2804 - Array Prototype ForEach

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2803 - Factorial Generator

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2802 - Find The K-th Lucky Number

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2801 - Count Stepping Numbers in Range

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2800 - Shortest String That Contains Three Strings

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2799 - Count Complete Subarrays in an Array

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2798 - Number of Employees Who Met the Target

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2797 - Partial Function with Placeholders

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2796 - Repeat String

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2795 - Parallel Execution of Promises for Individual Results Retrieval

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2794 - Create Object from Two Arrays

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2793 - Status of Flight Tickets

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2792 - Count Nodes That Are Great Enough

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2791 - Count Paths That Can Form a Palindrome in a Tree

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2790 - Maximum Number of Groups With Increasing Length

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2789 - Largest Element in an Array after Merge Operations

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2788 - Split Strings by Separator

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2787 - Ways to Express an Integer as Sum of Powers

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2786 - Visit Array Positions to Maximize Score

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2785 - Sort Vowels in a String

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2784 - Check if Array is Good

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2783 - Flight Occupancy and Waitlist Analysis

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2782 - Number of Unique Categories

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2781 - Length of the Longest Valid Substring

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2780 - Minimum Index of a Valid Split

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2779 - Maximum Beauty of an Array After Applying Operation

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2778 - Sum of Squares of Special Elements

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2777 - Date Range Generator

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2776 - Convert Callback Based Function to Promise Based Function

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2775 - Undefined to Null

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2774 - Array Upper Bound

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2773 - Height of Special Binary Tree

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2772 - Apply Operations to Make All Array Elements Equal to Zero

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2771 - Longest Non-decreasing Subarray From Two Arrays

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2770 - Maximum Number of Jumps to Reach the Last Index

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2769 - Find the Maximum Achievable Number

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2768 - Number of Black Blocks

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2767 - Partition String Into Minimum Beautiful Substrings

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2766 - Relocate Marbles

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2765 - Longest Alternating Subarray

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2764 - Is Array a Preorder of Some ‌Binary Tree

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2763 - Sum of Imbalance Numbers of All Subarrays

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2762 - Continuous Subarrays

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2761 - Prime Pairs With Target Sum

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2760 - Longest Even Odd Subarray With Threshold

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2759 - Convert JSON String to Object

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2758 - Next Day

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2757 - Generate Circular Array Values

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2756 - Query Batching

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2755 - Deep Merge of Two Objects

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2754 - Bind Function to Context

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2753 - Count Houses in a Circular Street II

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2752 - Customers with Maximum Number of Transactions on Consecutive Days

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2751 - Robot Collisions

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2750 - Ways to Split Array Into Good Subarrays

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2749 - Minimum Operations to Make the Integer Zero

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2748 - Number of Beautiful Pairs

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2747 - Count Zero Request Servers

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2746 - Decremental String Concatenation

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2745 - Construct the Longest New String

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2744 - Find Maximum Number of String Pairs

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2743 - Count Substrings Without Repeating Character

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2742 - Painting the Walls

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2741 - Special Permutations

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2740 - Find the Value of the Partition

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2739 - Total Distance Traveled

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2738 - Count Occurrences in Text

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2737 - Find the Closest Marked Node

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2736 - Maximum Sum Queries

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2735 - Collecting Chocolates

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2734 - Lexicographically Smallest String After Substring Operation

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2733 - Neither Minimum nor Maximum

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2732 - Find a Good Subset of the Matrix

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2731 - Movement of Robots

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2730 - Find the Longest Semi-Repetitive Substring

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2729 - Check if The Number is Fascinating

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2728 - Count Houses in a Circular Street

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2727 - Is Object Empty

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2726 - Calculator with Method Chaining

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2725 - Interval Cancellation

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2724 - Sort By

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2723 - Add Two Promises

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2722 - Join Two Arrays by ID

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2721 - Execute Asynchronous Functions in Parallel

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2720 - Popularity Percentage

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2719 - Count of Integers

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2718 - Sum of Matrix After Queries

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2717 - Semi-Ordered Permutation

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2716 - Minimize String Length

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2715 - Timeout Cancellation

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2714 - Find Shortest Path with K Hops

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2713 - Maximum Strictly Increasing Cells in a Matrix

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2712 - Minimum Cost to Make All Characters Equal

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2711 - Difference of Number of Distinct Values on Diagonals

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2710 - Remove Trailing Zeros From a String

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2709 - Greatest Common Divisor Traversal

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2708 - Maximum Strength of a Group

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2707 - Extra Characters in a String

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2706 - Buy Two Chocolates

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2705 - Compact Object

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2704 - To Be Or Not To Be

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2703 - Return Length of Arguments Passed

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2702 - Minimum Operations to Make Numbers Non-positive

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2701 - Consecutive Transactions with Increasing Amounts

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2700 - Differences Between Two Objects

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2699 - Modify Graph Edge Weights

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2698 - Find the Punishment Number of an Integer

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2697 - Lexicographically Smallest Palindrome

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2696 - Minimum String Length After Removing Substrings

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2695 - Array Wrapper

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2694 - Event Emitter

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2693 - Call Function with Custom Context

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2692 - Make Object Immutable

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2691 - Immutability Helper

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2690 - Infinite Method Object

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2689 - Extract Kth Character From The Rope Tree

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2688 - Find Active Users

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2687 - Bikes Last Time Used

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2686 - Immediate Food Delivery III

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2685 - Count the Number of Complete Components

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2684 - Maximum Number of Moves in a Grid

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2683 - Neighboring Bitwise XOR

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2682 - Find the Losers of the Circular Game

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2681 - Power of Heroes

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2680 - Maximum OR

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2679 - Sum in a Matrix

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2678 - Number of Senior Citizens

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2677 - Chunk Array

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2676 - Throttle

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2675 - Array of Objects to Matrix

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2674 - Split a Circular Linked List

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2673 - Make Costs of Paths Equal in a Binary Tree

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2672 - Number of Adjacent Elements With the Same Color

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2671 - Frequency Tracker

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2670 - Find the Distinct Difference Array

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2669 - Count Artist Occurrences On Spotify Ranking List

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2668 - Find Latest Salaries

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2667 - Create Hello World Function

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2666 - Allow One Function Call

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2665 - Counter II

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2664 - The Knight’s Tour

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2663 - Lexicographically Smallest Beautiful String

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2662 - Minimum Cost of a Path With Special Roads

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2661 - First Completely Painted Row or Column

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2660 - Determine the Winner of a Bowling Game

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2659 - Make Array Empty

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2658 - Maximum Number of Fish in a Grid

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2657 - Find the Prefix Common Array of Two Arrays

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2656 - Maximum Sum With Exactly K Elements

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2655 - Find Maximal Uncovered Ranges

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2654 - Minimum Number of Operations to Make All Array Elements Equal to 1

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2653 - Sliding Subarray Beauty

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2652 - Sum Multiples

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2651 - Calculate Delayed Arrival Time

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2650 - Design Cancellable Function

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2649 - Nested Array Generator

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2648 - Generate Fibonacci Sequence

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2647 - Color the Triangle Red

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2646 - Minimize the Total Price of the Trips

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2645 - Minimum Additions to Make Valid String

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2644 - Find the Maximum Divisibility Score

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2643 - Row With Maximum Ones

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2642 - Design Graph With Shortest Path Calculator

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2641 - Cousins in Binary Tree II

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2640 - Find the Score of All Prefixes of an Array

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2639 - Find the Width of Columns of a Grid

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2638 - Count the Number of K-Free Subsets

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2637 - Promise Time Limit

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2636 - Promise Pool

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2635 - Apply Transform Over Each Element in Array

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2634 - Filter Elements from Array

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2633 - Convert Object to JSON String

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2632 - Curry

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2631 - Group By

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2630 - Memoize II

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2629 - Function Composition

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2628 - JSON Deep Equal

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2627 - Debounce

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2626 - Array Reduce Transformation

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2625 - Flatten Deeply Nested Array

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2624 - Snail Traversal

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2623 - Memoize

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2622 - Cache With Time Limit

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2621 - Sleep

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2620 - Counter

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2619 - Array Prototype Last

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2618 - Check if Object Instance of Class

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2617 - Minimum Number of Visited Cells in a Grid

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2616 - Minimize the Maximum Difference of Pairs

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2615 - Sum of Distances

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2614 - Prime In Diagonal

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2613 - Beautiful Pairs

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2612 - Minimum Reverse Operations

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2611 - Mice and Cheese

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2610 - Convert an Array Into a 2D Array With Conditions

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2609 - Find the Longest Balanced Substring of a Binary String

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2608 - Shortest Cycle in a Graph

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2607 - Make K-Subarray Sums Equal

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2606 - Find the Substring With Maximum Cost

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2605 - Form Smallest Number From Two Digit Arrays

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2604 - Minimum Time to Eat All Grains

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2603 - Collect Coins in a Tree

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2602 - Minimum Operations to Make All Array Elements Equal

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2601 - Prime Subtraction Operation

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2600 - K Items With the Maximum Sum

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2599 - Make the Prefix Sum Non-negative

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2598 - Smallest Missing Non-negative Integer After Operations

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2597 - The Number of Beautiful Subsets

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2596 - Check Knight Tour Configuration

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2595 - Number of Even and Odd Bits

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2594 - Minimum Time to Repair Cars

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2593 - Find Score of an Array After Marking All Elements

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2592 - Maximize Greatness of an Array

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2591 - Distribute Money to Maximum Children

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2590 - Design a Todo List

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2589 - Minimum Time to Complete All Tasks

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2588 - Count the Number of Beautiful Subarrays

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2587 - Rearrange Array to Maximize Prefix Score

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2586 - Count the Number of Vowel Strings in Range

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2585 - Number of Ways to Earn Points

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2584 - Split the Array to Make Coprime Products

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2583 - Kth Largest Sum in a Binary Tree

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2582 - Pass the Pillow

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2581 - Count Number of Possible Root Nodes

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2580 - Count Ways to Group Overlapping Ranges

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2579 - Count Total Number of Colored Cells

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2578 - Split With Minimum Sum

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2577 - Minimum Time to Visit a Cell In a Grid

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2576 - Find the Maximum Number of Marked Indices

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2575 - Find the Divisibility Array of a String

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2574 - Left and Right Sum Differences

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2573 - Find the String with LCP

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2572 - Count the Number of Square-Free Subsets

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2571 - Minimum Operations to Reduce an Integer to 0

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2570 - Merge Two 2D Arrays by Summing Values

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2569 - Handling Sum Queries After Update

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2568 - Minimum Impossible OR

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2567 - Minimum Score by Changing Two Elements

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2566 - Maximum Difference by Remapping a Digit

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2565 - Subsequence With the Minimum Score

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2564 - Substring XOR Queries

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2563 - Count the Number of Fair Pairs

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2562 - Find the Array Concatenation Value

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2561 - Rearranging Fruits

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2560 - House Robber IV

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2559 - Count Vowel Strings in Ranges

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2558 - Take Gifts From the Richest Pile

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2557 - Maximum Number of Integers to Choose From a Range II

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2556 - Disconnect Path in a Binary Matrix by at Most One Flip

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2555 - Maximize Win From Two Segments

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2554 - Maximum Number of Integers to Choose From a Range I

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2553 - Separate the Digits in an Array

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2552 - Count Increasing Quadruplets

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2551 - Put Marbles in Bags

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2550 - Count Collisions of Monkeys on a Polygon

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2549 - Count Distinct Numbers on Board

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2548 - Maximum Price to Fill a Bag

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2547 - Minimum Cost to Split an Array

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2546 - Apply Bitwise Operations to Make Strings Equal

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2545 - Sort the Students by Their Kth Score

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2544 - Alternating Digit Sum

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2543 - Check if Point Is Reachable

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2542 - Maximum Subsequence Score

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2541 - Minimum Operations to Make Array Equal II

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2540 - Minimum Common Value

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2539 - Count the Number of Good Subsequences

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2538 - Difference Between Maximum and Minimum Price Sum

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2537 - Count the Number of Good Subarrays

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2536 - Increment Submatrices by One

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2535 - Difference Between Element Sum and Digit Sum of an Array

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2534 - Time Taken to Cross the Door

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2533 - Number of Good Binary Strings

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2532 - Time to Cross a Bridge

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2531 - Make Number of Distinct Characters Equal

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2530 - Maximal Score After Applying K Operations

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2529 - Maximum Count of Positive Integer and Negative Integer

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2528 - Maximize the Minimum Powered City

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2527 - Find Xor-Beauty of Array

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2526 - Find Consecutive Integers from a Data Stream

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2525 - Categorize Box According to Criteria

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2524 - Maximum Frequency Score of a Subarray

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2523 - Closest Prime Numbers in Range

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2522 - Partition String Into Substrings With Values at Most K

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2521 - Distinct Prime Factors of Product of Array

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2520 - Count the Digits That Divide a Number

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2519 - Count the Number of K-Big Indices

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2518 - Number of Great Partitions

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2517 - Maximum Tastiness of Candy Basket

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2516 - Take K of Each Character From Left and Right

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2515 - Shortest Distance to Target String in a Circular Array

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2514 - Count Anagrams

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2513 - Minimize the Maximum of Two Arrays

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2512 - Reward Top K Students

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2511 - Maximum Enemy Forts That Can Be Captured

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2510 - Check if There is a Path With Equal Number of 0's And 1's

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2509 - Cycle Length Queries in a Tree

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2508 - Add Edges to Make Degrees of All Nodes Even

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2507 - Smallest Value After Replacing With Sum of Prime Factors

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2506 - Count Pairs Of Similar Strings

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2505 - Bitwise OR of All Subsequence Sums

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2504 - Concatenate the Name and the Profession

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2503 - Maximum Number of Points From Grid Queries

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2502 - Design Memory Allocator

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2501 - Longest Square Streak in an Array

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2500 - Delete Greatest Value in Each Row

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2499 - Minimum Total Cost to Make Arrays Unequal

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2498 - Frog Jump II

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2497 - Maximum Star Sum of a Graph

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2496 - Maximum Value of a String in an Array

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2495 - Number of Subarrays Having Even Product

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2494 - Merge Overlapping Events in the Same Hall

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2493 - Divide Nodes Into the Maximum Number of Groups

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2492 - Minimum Score of a Path Between Two Cities

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2491 - Divide Players Into Teams of Equal Skill

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2490 - Circular Sentence

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2489 - Number of Substrings With Fixed Ratio

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2488 - Count Subarrays With Median K

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2487 - Remove Nodes From Linked List

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2486 - Append Characters to String to Make Subsequence

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2485 - Find the Pivot Integer

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2484 - Count Palindromic Subsequences

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2483 - Minimum Penalty for a Shop

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2482 - Difference Between Ones and Zeros in Row and Column

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2481 - Minimum Cuts to Divide a Circle

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2480 - Form a Chemical Bond

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2479 - Maximum XOR of Two Non-Overlapping Subtrees

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2478 - Number of Beautiful Partitions

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2477 - Minimum Fuel Cost to Report to the Capital

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2476 - Closest Nodes Queries in a Binary Search Tree

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2475 - Number of Unequal Triplets in Array

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2474 - Customers With Strictly Increasing Purchases

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2473 - Minimum Cost to Buy Apples

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2472 - Maximum Number of Non-overlapping Palindrome Substrings

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

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2470 - Number of Subarrays With LCM Equal to K

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2469 - Convert the Temperature

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2468 - Split Message Based on Limit

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2467 - Most Profitable Path in a Tree

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2466 - Count Ways To Build Good Strings

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2465 - Number of Distinct Averages

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2464 - Minimum Subarrays in a Valid Split

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2463 - Minimum Total Distance Traveled

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2462 - Total Cost to Hire K Workers

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2461 - Maximum Sum of Distinct Subarrays With Length K

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2460 - Apply Operations to an Array

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2459 - Sort Array by Moving Items to Empty Space

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2458 - Height of Binary Tree After Subtree Removal Queries

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2457 - Minimum Addition to Make Integer Beautiful

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2456 - Most Popular Video Creator

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

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2454 - Next Greater Element IV

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2453 - Destroy Sequential Targets

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2452 - Words Within Two Edits of Dictionary

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2451 - Odd String Difference

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2450 - Number of Distinct Binary Strings After Applying Operations

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2449 - Minimum Number of Operations to Make Arrays Similar

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2448 - Minimum Cost to Make Array Equal

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2447 - Number of Subarrays With GCD Equal to K

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2446 - Determine if Two Events Have Conflict

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2445 - Number of Nodes With Value One

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2444 - Count Subarrays With Fixed Bounds

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2443 - Sum of Number and Its Reverse

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2442 - Count Number of Distinct Integers After Reverse Operations

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2441 - Largest Positive Integer That Exists With Its Negative

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2440 - Create Components With Same Value

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2439 - Minimize Maximum of Array

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2438 - Range Product Queries of Powers

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2437 - Number of Valid Clock Times

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2436 - Minimum Split Into Subarrays With GCD Greater Than One

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2435 - Paths in Matrix Whose Sum Is Divisible by K

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2434 - Using a Robot to Print the Lexicographically Smallest String

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2433 - Find The Original Array of Prefix Xor

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2432 - The Employee That Worked on the Longest Task

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2431 - Maximize Total Tastiness of Purchased Fruits

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2430 - Maximum Deletions on a String

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2429 - Minimize XOR

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2428 - Maximum Sum of an Hourglass

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2427 - Number of Common Factors

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2426 - Number of Pairs Satisfying Inequality

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2425 - Bitwise XOR of All Pairings

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2424 - Longest Uploaded Prefix

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2423 - Remove Letter To Equalize Frequency

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2422 - Merge Operations to Turn Array Into a Palindrome

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2421 - Number of Good Paths

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2420 - Find All Good Indices

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2419 - Longest Subarray With Maximum Bitwise AND

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2418 - Sort the People

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2417 - Closest Fair Integer

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2416 - Sum of Prefix Scores of Strings

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2415 - Reverse Odd Levels of Binary Tree

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2414 - Length of the Longest Alphabetical Continuous Substring

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2413 - Smallest Even Multiple

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2412 - Minimum Money Required Before Transactions

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2411 - Smallest Subarrays With Maximum Bitwise OR

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2410 - Maximum Matching of Players With Trainers

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2409 - Count Days Spent Together

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2408 - Design SQL

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2407 - Longest Increasing Subsequence II

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2406 - Divide Intervals Into Minimum Number of Groups

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2405 - Optimal Partition of String

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2404 - Most Frequent Even Element

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2403 - Minimum Time to Kill All Monsters

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2402 - Meeting Rooms III

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2401 - Longest Nice Subarray

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

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2399 - Check Distances Between Same Letters

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2398 - Maximum Number of Robots Within Budget

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2397 - Maximum Rows Covered by Columns

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2396 - Strictly Palindromic Number

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2395 - Find Subarrays With Equal Sum

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2394 - Employees With Deductions

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2393 - Count Strictly Increasing Subarrays

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2392 - Build a Matrix With Conditions

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2391 - Minimum Amount of Time to Collect Garbage

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2390 - Removing Stars From a String

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2389 - Longest Subsequence With Limited Sum

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

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2387 - Median of a Row Wise Sorted Matrix

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2386 - Find the K-Sum of an Array

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2385 - Amount of Time for Binary Tree to Be Infected

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2384 - Largest Palindromic Number

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2383 - Minimum Hours of Training to Win a Competition

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2382 - Maximum Segment Sum After Removals

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2381 - Shifting Letters II

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2380 - Time Needed to Rearrange a Binary String

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2379 - Minimum Recolors to Get K Consecutive Black Blocks

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2378 - Choose Edges to Maximize Score in a Tree

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2377 - Sort the Olympic Table

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2376 - Count Special Integers

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2375 - Construct Smallest Number From DI String

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2374 - Node With Highest Edge Score

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2373 - Largest Local Values in a Matrix

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2372 - Calculate the Influence of Each Salesperson

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2371 - Minimize Maximum Value in a Grid

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2370 - Longest Ideal Subsequence

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

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2368 - Reachable Nodes With Restrictions

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2367 - Number of Arithmetic Triplets

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2366 - Minimum Replacements to Sort the Array

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2365 - Task Scheduler II

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2364 - Count Number of Bad Pairs

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2363 - Merge Similar Items

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2362 - Generate the Invoice

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2361 - Minimum Costs Using the Train Line

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2360 - Longest Cycle in a Graph

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2359 - Find Closest Node to Given Two Nodes

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2358 - Maximum Number of Groups Entering a Competition

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2357 - Make Array Zero by Subtracting Equal Amounts

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2356 - Number of Unique Subjects Taught by Each Teacher

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2355 - Maximum Number of Books You Can Take

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2354 - Number of Excellent Pairs

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2353 - Design a Food Rating System

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2352 - Equal Row and Column Pairs

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2351 - First Letter to Appear Twice

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2350 - Shortest Impossible Sequence of Rolls

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2349 - Design a Number Container System

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2348 - Number of Zero-Filled Subarrays

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2347 - Best Poker Hand

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2346 - Compute the Rank as a Percentage

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2345 - Finding the Number of Visible Mountains

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2344 - Minimum Deletions to Make Array Divisible

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2343 - Query Kth Smallest Trimmed Number

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

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2341 - Maximum Number of Pairs in Array

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2340 - Minimum Adjacent Swaps to Make a Valid Array

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2339 - All the Matches of the League

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2338 - Count the Number of Ideal Arrays

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2337 - Move Pieces to Obtain a String

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2336 - Smallest Number in Infinite Set

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2335 - Minimum Amount of Time to Fill Cups

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2334 - Subarray With Elements Greater Than Varying Threshold

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2333 - Minimum Sum of Squared Difference

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2332 - The Latest Time to Catch a Bus

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2331 - Evaluate Boolean Binary Tree

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2330 - Valid Palindrome IV

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2329 - Product Sales Analysis V

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2214 - Minimum Health to Beat Game

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2328 - Number of Increasing Paths in a Grid

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2327 - Number of People Aware of a Secret

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2326 - Spiral Matrix IV

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2325 - Decode the Message

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2324 - Product Sales Analysis IV

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2323 - Find Minimum Time to Finish All Jobs II

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2322 - Minimum Score After Removals on a Tree

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2321 - Maximum Score Of Spliced Array

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2320 - Count Number of Ways to Place Houses

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2319 - Check if Matrix Is X-Matrix

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2318 - Number of Distinct Roll Sequences

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2317 - Maximum XOR After Operations

Posted on April 4, 2022

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2316 - Count Unreachable Pairs of Nodes in an Undirected Graph

Posted on April 3, 2022

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2315 - Count Asterisks

Posted on April 2, 2022

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

Posted on April 1, 2022

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2313 - Minimum Flips in Binary Tree to Get Result

Posted on March 31, 2022

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2312 - Selling Pieces of Wood

Posted on March 30, 2022

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2311 - Longest Binary Subsequence Less Than or Equal to K

Posted on March 29, 2022

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2310 - Sum of Numbers With Units Digit K

Posted on March 28, 2022

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2309 - Greatest English Letter in Upper and Lower Case

Posted on March 27, 2022

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2308 - Arrange Table by Gender

Posted on March 26, 2022

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2307 - Check for Contradictions in Equations

Posted on March 25, 2022

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2306 - Naming a Company

Posted on March 24, 2022

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2305 - Fair Distribution of Cookies

Posted on March 23, 2022

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2304 - Minimum Path Cost in a Grid

Posted on March 22, 2022

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2303 - Calculate Amount Paid in Taxes

Posted on March 21, 2022

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2302 - Count Subarrays With Score Less Than K

Posted on March 20, 2022

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2301 - Match Substring After Replacement

Posted on March 19, 2022

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2300 - Successful Pairs of Spells and Potions

Posted on March 18, 2022

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2299 - Strong Password Checker II

Posted on March 17, 2022

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2298 - Tasks Count in the Weekend

Posted on March 16, 2022

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2297 - Jump Game VIII

Posted on March 15, 2022

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2296 - Design a Text Editor

Posted on March 14, 2022

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2295 - Replace Elements in an Array

Posted on March 13, 2022

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2294 - Partition Array Such That Maximum Difference Is K

Posted on March 12, 2022

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2293 - Min Max Game

Posted on March 11, 2022

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

Posted on March 10, 2022

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2291 - Maximum Profit From Trading Stocks

Posted on March 9, 2022

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2290 - Minimum Obstacle Removal to Reach Corner

Posted on March 8, 2022

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2289 - Steps to Make Array Non-decreasing

Posted on March 7, 2022

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2288 - Apply Discount to Prices

Posted on March 6, 2022

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2287 - Rearrange Characters to Make Target String

Posted on March 5, 2022

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2286 - Booking Concert Tickets in Groups

Posted on March 4, 2022

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2285 - Maximum Total Importance of Roads

Posted on March 3, 2022

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2284 - Sender With Largest Word Count

Posted on March 2, 2022

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

Posted on March 1, 2022

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

Posted on February 28, 2022

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2281 - Sum of Total Strength of Wizards

Posted on February 27, 2022

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2280 - Minimum Lines to Represent a Line Chart

Posted on February 26, 2022

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2279 - Maximum Bags With Full Capacity of Rocks

Posted on February 25, 2022

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2278 - Percentage of Letter in String

Posted on February 24, 2022

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2277 - Closest Node to Path in Tree

Posted on February 23, 2022

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2276 - Count Integers in Intervals

Posted on February 22, 2022

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2275 - Largest Combination With Bitwise AND Greater Than Zero

Posted on February 21, 2022

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2274 - Maximum Consecutive Floors Without Special Floors

Posted on February 20, 2022

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2273 - Find Resultant Array After Removing Anagrams

Posted on February 19, 2022

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2272 - Substring With Largest Variance

Posted on February 18, 2022

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2271 - Maximum White Tiles Covered by a Carpet

Posted on February 17, 2022

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2270 - Number of Ways to Split Array

Posted on February 16, 2022

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2269 - Find the K-Beauty of a Number

Posted on February 15, 2022

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2268 - Minimum Number of Keypresses

Posted on February 14, 2022

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2267 - Check if There Is a Valid Parentheses String Path

Posted on February 13, 2022

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2266 - Count Number of Texts

Posted on February 12, 2022

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2265 - Count Nodes Equal to Average of Subtree

Posted on February 11, 2022

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2264 - Largest 3-Same-Digit Number in String

Posted on February 10, 2022

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2263 - Make Array Non-decreasing or Non-increasing

Posted on February 9, 2022

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2262 - Total Appeal of A String

Posted on February 8, 2022

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2261 - K Divisible Elements Subarrays

Posted on February 7, 2022

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2260 - Minimum Consecutive Cards to Pick Up

Posted on February 6, 2022

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2259 - Remove Digit From Number to Maximize Result

Posted on February 5, 2022

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2258 - Escape the Spreading Fire

Posted on February 4, 2022

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2257 - Count Unguarded Cells in the Grid

Posted on February 3, 2022

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2256 - Minimum Average Difference

Posted on February 2, 2022

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2255 - Count Prefixes of a Given String

Posted on February 1, 2022

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2254 - Design Video Sharing Platform

Posted on January 31, 2022

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2253 - Dynamic Unpivoting of a Table

Posted on January 30, 2022

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2252 - Dynamic Pivoting of a Table

Posted on January 29, 2022

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2251 - Number of Flowers in Full Bloom

Posted on January 28, 2022

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2250 - Count Number of Rectangles Containing Each Point

Posted on January 27, 2022

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2249 - Count Lattice Points Inside a Circle

Posted on January 26, 2022

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2248 - Intersection of Multiple Arrays

Posted on January 25, 2022

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2247 - Maximum Cost of Trip With K Highways

Posted on January 24, 2022

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2246 - Longest Path With Different Adjacent Characters

Posted on January 23, 2022

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2245 - Maximum Trailing Zeros in a Cornered Path

Posted on January 22, 2022

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2244 - Minimum Rounds to Complete All Tasks

Posted on January 21, 2022

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2243 - Calculate Digit Sum of a String

Posted on January 20, 2022

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2242 - Maximum Score of a Node Sequence

Posted on January 19, 2022

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2241 - Design an ATM Machine

Posted on January 18, 2022

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2240 - Number of Ways to Buy Pens and Pencils

Posted on January 17, 2022

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2239 - Find Closest Number to Zero

Posted on January 16, 2022

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2238 - Number of Times a Driver Was a Passenger

Posted on January 15, 2022

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2237 - Count Positions on Street With Required Brightness

Posted on January 14, 2022

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2236 - Root Equals Sum of Children

Posted on January 13, 2022

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2235 - Add Two Integers

Posted on January 12, 2022

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2234 - Maximum Total Beauty of the Gardens

Posted on January 11, 2022

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2233 - Maximum Product After K Increments

Posted on January 10, 2022

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2232 - Minimize Result by Adding Parentheses to Expression

Posted on January 9, 2022

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2231 - Largest Number After Digit Swaps by Parity

Posted on January 8, 2022

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2230 - The Users That Are Eligible for Discount

Posted on January 7, 2022

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2229 - Check if an Array Is Consecutive

Posted on January 6, 2022

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2228 - Users With Two Purchases Within Seven Days

Posted on January 5, 2022

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2227 - Encrypt and Decrypt Strings

Posted on January 4, 2022

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2226 - Maximum Candies Allocated to K Children

Posted on January 3, 2022

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2225 - Find Players With Zero or One Losses

Posted on January 2, 2022

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2224 - Minimum Number of Operations to Convert Time

Posted on January 1, 2022

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2223 - Sum of Scores of Built Strings

Posted on December 31, 2021

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2222 - Number of Ways to Select Buildings

Posted on December 30, 2021

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2221 - Find Triangular Sum of an Array

Posted on December 29, 2021

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2220 - Minimum Bit Flips to Convert Number

Posted on December 28, 2021

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2219 - Maximum Sum Score of Array

Posted on December 27, 2021

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2218 - Maximum Value of K Coins From Piles

Posted on December 26, 2021

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2217 - Find Palindrome With Fixed Length

Posted on December 25, 2021

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2216 - Minimum Deletions to Make Array Beautiful

Posted on December 24, 2021

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2215 - Find the Difference of Two Arrays

Posted on December 23, 2021

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2213 - Longest Substring of One Repeating Character

Posted on December 21, 2021

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2212 - Maximum Points in an Archery Competition

Posted on December 20, 2021

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2211 - Count Collisions on a Road

Posted on December 19, 2021

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2210 - Count Hills and Valleys in an Array

Posted on December 18, 2021

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2209 - Minimum White Tiles After Covering With Carpets

Posted on December 17, 2021

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2208 - Minimum Operations to Halve Array Sum

Posted on December 16, 2021

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2207 - Maximize Number of Subsequences in a String

Posted on December 15, 2021

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2206 - Divide Array Into Equal Pairs

Posted on December 14, 2021

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2205 - The Number of Users That Are Eligible for Discount

Posted on December 13, 2021

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2204 - Distance to a Cycle in Undirected Graph

Posted on December 12, 2021

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2203 - Minimum Weighted Subgraph With the Required Paths

Posted on December 11, 2021

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2202 - Maximize the Topmost Element After K Moves

Posted on December 10, 2021

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2201 - Count Artifacts That Can Be Extracted

Posted on December 9, 2021

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2200 - Find All K-Distant Indices in an Array

Posted on December 8, 2021

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2199 - Finding the Topic of Each Post

Posted on December 7, 2021

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2198 - Number of Single Divisor Triplets

Posted on December 6, 2021

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2197 - Replace Non-Coprime Numbers in Array

Posted on December 5, 2021

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2196 - Create Binary Tree From Descriptions

Posted on December 4, 2021

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2195 - Append K Integers With Minimal Sum

Posted on December 3, 2021

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2194 - Cells in a Range on an Excel Sheet

Posted on December 2, 2021

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2193 - Minimum Number of Moves to Make Palindrome

Posted on December 1, 2021

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

Posted on November 30, 2021

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2191 - Sort the Jumbled Numbers

Posted on November 29, 2021

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2190 - Most Frequent Number Following Key In an Array

Posted on November 28, 2021

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2189 - Number of Ways to Build House of Cards

Posted on November 27, 2021

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2188 - Minimum Time to Finish the Race

Posted on November 26, 2021

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2187 - Minimum Time to Complete Trips

Posted on November 25, 2021

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

Posted on November 24, 2021

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2185 - Counting Words With a Given Prefix

Posted on November 23, 2021

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2184 - Number of Ways to Build Sturdy Brick Wall

Posted on November 22, 2021

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2183 - Count Array Pairs Divisible by K

Posted on November 21, 2021

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2182 - Construct String With Repeat Limit

Posted on November 20, 2021

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2181 - Merge Nodes in Between Zeros

Posted on November 19, 2021

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2180 - Count Integers With Even Digit Sum

Posted on November 18, 2021

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2179 - Count Good Triplets in an Array

Posted on November 17, 2021

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2178 - Maximum Split of Positive Even Integers

Posted on November 16, 2021

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

Posted on November 15, 2021

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2176 - Count Equal and Divisible Pairs in an Array

Posted on November 14, 2021

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2175 - The Change in Global Rankings

Posted on November 13, 2021

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2174 - Remove All Ones With Row and Column Flips II

Posted on November 12, 2021

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2173 - Longest Winning Streak

Posted on November 11, 2021

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2172 - Maximum AND Sum of Array

Posted on November 10, 2021

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2171 - Removing Minimum Number of Magic Beans

Posted on November 9, 2021

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2170 - Minimum Operations to Make the Array Alternating

Posted on November 8, 2021

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2169 - Count Operations to Obtain Zero

Posted on November 7, 2021

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2168 - Unique Substrings With Equal Digit Frequency

Posted on November 6, 2021

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2167 - Minimum Time to Remove All Cars Containing Illegal Goods

Posted on November 5, 2021

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2166 - Design Bitset

Posted on November 4, 2021

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2165 - Smallest Value of the Rearranged Number

Posted on November 3, 2021

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2164 - Sort Even and Odd Indices Independently

Posted on November 2, 2021

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2163 - Minimum Difference in Sums After Removal of Elements

Posted on November 1, 2021

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2162 - Minimum Cost to Set Cooking Time

Posted on October 31, 2021

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2161 - Partition Array According to Given Pivot

Posted on October 30, 2021

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2160 - Minimum Sum of Four Digit Number After Splitting Digits

Posted on October 29, 2021

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2159 - Order Two Columns Independently

Posted on October 28, 2021

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2158 - Amount of New Area Painted Each Day

Posted on October 27, 2021

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2157 - Groups of Strings

Posted on October 26, 2021

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2156 - Find Substring With Given Hash Value

Posted on October 25, 2021

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

Posted on October 24, 2021

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2154 - Keep Multiplying Found Values by Two

Posted on October 23, 2021

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2153 - The Number of Passengers in Each Bus II

Posted on October 22, 2021

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2152 - Minimum Number of Lines to Cover Points

Posted on October 21, 2021

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2151 - Maximum Good People Based on Statements

Posted on October 20, 2021

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2150 - Find All Lonely Numbers in the Array

Posted on October 19, 2021

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2149 - Rearrange Array Elements by Sign

Posted on October 18, 2021

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2148 - Count Elements With Strictly Smaller and Greater Elements

Posted on October 17, 2021

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2147 - Number of Ways to Divide a Long Corridor

Posted on October 16, 2021

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2146 - K Highest Ranked Items Within a Price Range

Posted on October 15, 2021

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2145 - Count the Hidden Sequences

Posted on October 14, 2021

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2144 - Minimum Cost of Buying Candies With Discount

Posted on October 13, 2021

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2143 - Choose Numbers From Two Arrays in Range

Posted on October 12, 2021

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2142 - The Number of Passengers in Each Bus I

Posted on October 11, 2021

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2141 - Maximum Running Time of N Computers

Posted on October 10, 2021

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2140 - Solving Questions With Brainpower

Posted on October 9, 2021

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2139 - Minimum Moves to Reach Target Score

Posted on October 8, 2021

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2138 - Divide a String Into Groups of Size k

Posted on October 7, 2021

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2137 - Pour Water Between Buckets to Make Water Levels Equal

Posted on October 6, 2021

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2136 - Earliest Possible Day of Full Bloom

Posted on October 5, 2021

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2135 - Count Words Obtained After Adding a Letter

Posted on October 4, 2021

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

Posted on October 3, 2021

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2133 - Check if Every Row and Column Contains All Numbers

Posted on October 2, 2021

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2132 - Stamping the Grid

Posted on October 1, 2021

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2131 - Longest Palindrome by Concatenating Two Letter Words

Posted on September 30, 2021

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2130 - Maximum Twin Sum of a Linked List

Posted on September 29, 2021

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2129 - Capitalize the Title

Posted on September 28, 2021

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2128 - Remove All Ones With Row and Column Flips

Posted on September 27, 2021

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2127 - Maximum Employees to Be Invited to a Meeting

Posted on September 26, 2021

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2126 - Destroying Asteroids

Posted on September 25, 2021

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2125 - Number of Laser Beams in a Bank

Posted on September 24, 2021

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

Posted on September 23, 2021

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2123 - Minimum Operations to Remove Adjacent Ones in Matrix

Posted on September 22, 2021

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2122 - Recover the Original Array

Posted on September 21, 2021

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2121 - Intervals Between Identical Elements

Posted on September 20, 2021

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2120 - Execution of All Suffix Instructions Staying in a Grid

Posted on September 19, 2021

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2119 - A Number After a Double Reversal

Posted on September 18, 2021

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2118 - Build the Equation

Posted on September 17, 2021

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2117 - Abbreviating the Product of a Range

Posted on September 16, 2021

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2116 - Check if a Parentheses String Can Be Valid

Posted on September 15, 2021

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2115 - Find All Possible Recipes from Given Supplies

Posted on September 14, 2021

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2114 - Maximum Number of Words Found in Sentences

Posted on September 13, 2021

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2113 - Elements in Array After Removing and Replacing Elements

Posted on September 12, 2021

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2112 - The Airport With the Most Traffic

Posted on September 11, 2021

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2111 - Minimum Operations to Make the Array K-Increasing

Posted on September 10, 2021

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2110 - Number of Smooth Descent Periods of a Stock

Posted on September 9, 2021

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2109 - Adding Spaces to a String

Posted on September 8, 2021

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2108 - Find First Palindromic String in the Array

Posted on September 7, 2021

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2107 - Number of Unique Flavors After Sharing K Candies

Posted on September 6, 2021

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2106 - Maximum Fruits Harvested After at Most K Steps

Posted on September 5, 2021

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2105 - Watering Plants II

Posted on September 4, 2021

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2104 - Sum of Subarray Ranges

Posted on September 3, 2021

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2103 - Rings and Rods

Posted on September 2, 2021

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2102 - Sequentially Ordinal Rank Tracker

Posted on September 1, 2021

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2101 - Detonate the Maximum Bombs

Posted on August 31, 2021

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2100 - Find Good Days to Rob the Bank

Posted on August 30, 2021

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2099 - Find Subsequence of Length K With the Largest Sum

Posted on August 29, 2021

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2098 - Subsequence of Size K With the Largest Even Sum

Posted on August 28, 2021

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2097 - Valid Arrangement of Pairs

Posted on August 27, 2021

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

Posted on August 26, 2021

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2095 - Delete the Middle Node of a Linked List

Posted on August 25, 2021

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2094 - Finding 3-Digit Even Numbers

Posted on August 24, 2021

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2093 - Minimum Cost to Reach City With Discounts

Posted on August 23, 2021

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2092 - Find All People With Secret

Posted on August 22, 2021

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2091 - Removing Minimum and Maximum From Array

Posted on August 21, 2021

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2090 - K Radius Subarray Averages

Posted on August 20, 2021

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2089 - Find Target Indices After Sorting Array

Posted on August 19, 2021

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2088 - Count Fertile Pyramids in a Land

Posted on August 18, 2021

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2087 - Minimum Cost Homecoming of a Robot in a Grid

Posted on August 17, 2021

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2086 - Minimum Number of Food Buckets to Feed the Hamsters

Posted on August 16, 2021

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2085 - Count Common Words With One Occurrence

Posted on August 15, 2021

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

Posted on August 14, 2021

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2083 - Substrings That Begin and End With the Same Letter

Posted on August 13, 2021

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2082 - The Number of Rich Customers

Posted on August 12, 2021

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2081 - Sum of k-Mirror Numbers

Posted on August 11, 2021

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2080 - Range Frequency Queries

Posted on August 10, 2021

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2079 - Watering Plants

Posted on August 9, 2021

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2078 - Two Furthest Houses With Different Colors

Posted on August 8, 2021

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2077 - Paths in Maze That Lead to Same Room

Posted on August 7, 2021

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2076 - Process Restricted Friend Requests

Posted on August 6, 2021

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2075 - Decode the Slanted Ciphertext

Posted on August 5, 2021

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2074 - Reverse Nodes in Even Length Groups

Posted on August 4, 2021

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2073 - Time Needed to Buy Tickets

Posted on August 3, 2021

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2072 - The Winner University

Posted on August 2, 2021

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2071 - Maximum Number of Tasks You Can Assign

Posted on August 1, 2021

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2070 - Most Beautiful Item for Each Query

Posted on July 31, 2021

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2069 - Walking Robot Simulation II

Posted on July 30, 2021

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2068 - Check Whether Two Strings are Almost Equivalent

Posted on July 29, 2021

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2067 - Number of Equal Count Substrings

Posted on July 28, 2021

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2066 - Account Balance

Posted on July 27, 2021

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2065 - Maximum Path Quality of a Graph

Posted on July 26, 2021

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2064 - Minimized Maximum of Products Distributed to Any Store

Posted on July 25, 2021

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2063 - Vowels of All Substrings

Posted on July 24, 2021

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2062 - Count Vowel Substrings of a String

Posted on July 23, 2021

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2061 - Number of Spaces Cleaning Robot Cleaned

Posted on July 22, 2021

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

Posted on July 21, 2021

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2059 - Minimum Operations to Convert Number

Posted on July 20, 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 July 18, 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

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2053 - Kth Distinct String in an Array

Posted on July 14, 2021

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2052 - Minimum Cost to Separate Sentence Into Rows

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2051 - The Category of Each Member in the Store

Posted on July 12, 2021

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2050 - Parallel Courses III

Posted on July 11, 2021

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2049 - Count Nodes With the Highest Score

Posted on July 10, 2021

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2048 - Next Greater Numerically Balanced Number

Posted on July 9, 2021

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2047 - Number of Valid Words in a Sentence

Posted on July 8, 2021

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2046 - Sort Linked List Already Sorted Using Absolute Values

Posted on July 7, 2021

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2045 - Second Minimum Time to Reach Destination

Posted on July 6, 2021

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2044 - Count Number of Maximum Bitwise-OR Subsets

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2043 - Simple Bank System

Posted on July 4, 2021

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2042 - Check if Numbers Are Ascending in a Sentence

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2041 - Accepted Candidates From the Interviews

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2040 - Kth Smallest Product of Two Sorted Arrays

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2039 - The Time When the Network Becomes Idle

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

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2037 - Minimum Number of Moves to Seat Everyone

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2036 - Maximum Alternating Subarray Sum

Posted on June 27, 2021

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2035 - Partition Array Into Two Arrays to Minimize Sum Difference

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2034 - Stock Price Fluctuation

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2033 - Minimum Operations to Make a Uni-Value Grid

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2032 - Two Out of Three

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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

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2029 - Stone Game IX

Posted on June 20, 2021

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2028 - Find Missing Observations

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2027 - Minimum Moves to Convert String

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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

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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

Posted on June 8, 2021

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2016 - Maximum Difference Between Increasing Elements

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2015 - Average Height of Buildings in Each Segment

Posted on June 6, 2021

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2014 - Longest Subsequence Repeated k Times

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2013 - Detect Squares

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2012 - Sum of Beauty in the Array

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2011 - Final Value of Variable After Performing Operations

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

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2009 - Minimum Number of Operations to Make Array Continuous

Posted on May 31, 2021

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2008 - Maximum Earnings From Taxi

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2007 - Find Original Array From Doubled Array

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2006 - Count Number of Pairs With Absolute Difference K

Posted on May 28, 2021

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2005 - Subtree Removal Game with Fibonacci Tree

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

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2003 - Smallest Missing Genetic Value in Each Subtree

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2002 - Maximum Product of the Length of Two Palindromic Subsequences

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2001 - Number of Pairs of Interchangeable Rectangles

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2000 - Reverse Prefix of Word

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1999 - Smallest Greater Multiple Made of Two Digits

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1998 - GCD Sort of an Array

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

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1996 - The Number of Weak Characters in the Game

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1995 - Count Special Quadruplets

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1994 - The Number of Good Subsets

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1993 - Operations on Tree

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1992 - Find All Groups of Farmland

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1991 - Find the Middle Index in Array

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1990 - Count the Number of Experiments

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

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1988 - Find Cutoff Score for Each School

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1987 - Number of Unique Good Subsequences

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1986 - Minimum Number of Work Sessions to Finish the Tasks

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1985 - Find the Kth Largest Integer in the Array

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1984 - Minimum Difference Between Highest and Lowest of K Scores

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1983 - Widest Pair of Indices With Equal Range Sum

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1982 - Find Array Given Subset Sums

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1981 - Minimize the Difference Between Target and Chosen Elements

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1980 - Find Unique Binary String

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1979 - Find Greatest Common Divisor of Array

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1978 - Employees Whose Manager Left the Company

Posted on April 30, 2021

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1977 - Number of Ways to Separate Numbers

Posted on April 29, 2021

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1976 - Number of Ways to Arrive at Destination

Posted on April 28, 2021

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1975 - Maximum Matrix Sum

Posted on April 27, 2021

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1974 - Minimum Time to Type Word Using Special Typewriter

Posted on April 26, 2021

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1973 - Count Nodes Equal to Sum of Descendants

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1972 - First and Last Call On the Same Day

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1971 - Find if Path Exists in Graph

Posted on April 23, 2021

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1970 - Last Day Where You Can Still Cross

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1969 - Minimum Non-Zero Product of the Array Elements

Posted on April 21, 2021

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1968 - Array With Elements Not Equal to Average of Neighbors

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1967 - Number of Strings That Appear as Substrings in Word

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1966 - Binary Searchable Numbers in an Unsorted Array

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1965 - Employees With Missing Information

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1964 - Find the Longest Valid Obstacle Course at Each Position

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1963 - Minimum Number of Swaps to Make the String Balanced

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1962 - Remove Stones to Minimize the Total

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1961 - Check If String Is a Prefix of Array

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1960 - Maximum Product of the Length of Two Palindromic Substrings

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1959 - Minimum Total Space Wasted With K Resizing Operations

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1958 - Check if Move is Legal

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1957 - Delete Characters to Make Fancy String

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1956 - Minimum Time For K Virus Variants to Spread

Posted on April 8, 2021

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1955 - Count Number of Special Subsequences

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1954 - Minimum Garden Perimeter to Collect Enough Apples

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1953 - Maximum Number of Weeks for Which You Can Work

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1952 - Three Divisors

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

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1950 - Maximum of Minimum Values in All Subarrays

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1949 - Strong Friendship

Posted on April 1, 2021

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1948 - Delete Duplicate Folders in System

Posted on March 31, 2021

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1947 - Maximum Compatibility Score Sum

Posted on March 30, 2021

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1746 - Maximum Subarray Sum After One Operation

Posted on March 29, 2021

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1946 - Largest Number After Mutating Substring

Posted on March 29, 2021

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1745 - Palindrome Partitioning IV

Posted on March 28, 2021

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1945 - Sum of Digits of String After Convert

Posted on March 28, 2021

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1944 - Number of Visible People in a Queue

Posted on March 27, 2021

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1943 - Describe the Painting

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1942 - The Number of the Smallest Unoccupied Chair

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1941 - Check if All Characters Have Equal Number of Occurrences

Posted on March 24, 2021

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1940 - Longest Common Subsequence Between Sorted Arrays

Posted on March 23, 2021

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1939 - Users That Actively Request Confirmation Messages

Posted on March 22, 2021

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1938 - Maximum Genetic Difference Query

Posted on March 21, 2021

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1937 - Maximum Number of Points with Cost

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1936 - Add Minimum Number of Rungs

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1935 - Maximum Number of Words You Can Type

Posted on March 18, 2021

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1934 - Confirmation Rate

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

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1932 - Merge BSTs to Create Single BST

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1931 - Painting a Grid With Three Different Colors

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1930 - Unique Length-3 Palindromic Subsequences

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1929 - Concatenation of Array

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1928 - Minimum Cost to Reach Destination in Time

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1927 - Sum Game

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1926 - Nearest Exit from Entrance in Maze

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1925 - Count Square Sum Triples

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1924 - Erect the Fence II

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1923 - Longest Common Subpath

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1922 - Count Good Numbers

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1921 - Eliminate Maximum Number of Monsters

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1920 - Build Array from Permutation

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1919 - Leetcodify Similar Friends

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1918 - Kth Smallest Subarray Sum

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1917 - Leetcodify Friends Recommendations

Posted on February 28, 2021

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1916 - Count Ways to Build Rooms in an Ant Colony

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1915 - Number of Wonderful Substrings

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1914 - Cyclically Rotating a Grid

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1913 - Maximum Product Difference Between Two Pairs

Posted on February 24, 2021

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1912 - Design Movie Rental System

Posted on February 23, 2021

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1911 - Maximum Alternating Subsequence Sum

Posted on February 22, 2021

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1910 - Remove All Occurrences of a Substring

Posted on February 21, 2021

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1909 - Remove One Element to Make the Array Strictly Increasing

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1908 - Game of Nim

Posted on February 19, 2021

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1907 - Count Salary Categories

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1906 - Minimum Absolute Difference Queries

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1905 - Count Sub Islands

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1904 - The Number of Full Rounds You Have Played

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1903 - Largest Odd Number in String

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1902 - Depth of BST Given Insertion Order

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1901 - Find a Peak Element II

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1900 - The Earliest and Latest Rounds Where Players Compete

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1899 - Merge Triplets to Form Target Triplet

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1898 - Maximum Number of Removable Characters

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1897 - Redistribute Characters to Make All Strings Equal

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1896 - Minimum Cost to Change the Final Value of Expression

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1895 - Largest Magic Square

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1894 - Find the Student that Will Replace the Chalk

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

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1892 - Page Recommendations II

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1891 - Cutting Ribbons

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1890 - The Latest Login in 2020

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1889 - Minimum Space Wasted From Packaging

Posted on January 31, 2021

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

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1887 - Reduction Operations to Make the Array Elements Equal

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1886 - Determine Whether Matrix Can Be Obtained By Rotation

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1885 - Count Pairs in Two Arrays

Posted on January 27, 2021

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1884 - Egg Drop With 2 Eggs and N Floors

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1883 - Minimum Skips to Arrive at Meeting On Time

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1882 - Process Tasks Using Servers

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1881 - Maximum Value after Insertion

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1880 - Check if Word Equals Summation of Two Words

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1879 - Minimum XOR Sum of Two Arrays

Posted on January 21, 2021

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1878 - Get Biggest Three Rhombus Sums in a Grid

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1877 - Minimize Maximum Pair Sum in Array

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1876 - Substrings of Size Three with Distinct Characters

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1875 - Group Employees of the Same Salary

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1874 - Minimize Product Sum of Two Arrays

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1873 - Calculate Special Bonus

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1872 - Stone Game VIII

Posted on January 14, 2021

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1871 - Jump Game VII

Posted on January 13, 2021

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1870 - Minimum Speed to Arrive on Time

Posted on January 12, 2021

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1869 - Longer Contiguous Segments of Ones than Zeros

Posted on January 11, 2021

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1868 - Product of Two Run-Length Encoded Arrays

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1867 - Orders With Maximum Quantity Above Average

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

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1865 - Finding Pairs With a Certain Sum

Posted on January 7, 2021

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

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1863 - Sum of All Subset XOR Totals

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1862 - Sum of Floored Pairs

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1861 - Rotating the Box

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1860 - Incremental Memory Leak

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1859 - Sorting the Sentence

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1858 - Longest Word With All Prefixes

Posted on December 31, 2020

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1857 - Largest Color Value in a Directed Graph

Posted on December 30, 2020

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1856 - Maximum Subarray Min-Product

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1855 - Maximum Distance Between a Pair of Values

Posted on December 28, 2020

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1854 - Maximum Population Year

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1853 - Convert Date Format

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1852 - Distinct Numbers in Each Subarray

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1851 - Minimum Interval to Include Each Query

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1850 - Minimum Adjacent Swaps to Reach the Kth Smallest Number

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1849 - Splitting a String Into Descending Consecutive Values

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1848 - Minimum Distance to the Target Element

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1847 - Closest Room

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1846 - Maximum Element After Decreasing and Rearranging

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1845 - Seat Reservation Manager

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1844 - Replace All Digits with Characters

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1843 - Suspicious Bank Accounts

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1842 - Next Palindrome Using Same Digits

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1841 - League Statistics

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1840 - Maximum Building Height

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1839 - Longest Substring Of All Vowels in Order

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1838 - Frequency of the Most Frequent Element

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1837 - Sum of Digits in Base K

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1836 - Remove Duplicates From an Unsorted Linked List

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1835 - Find XOR Sum of All Pairs Bitwise AND

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1834 - Single-Threaded CPU

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1833 - Maximum Ice Cream Bars

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1832 - Check if the Sentence Is Pangram

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1831 - Maximum Transaction Each Day

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1830 - Minimum Number of Operations to Make String Sorted

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1829 - Maximum XOR for Each Query

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1828 - Queries on Number of Points Inside a Circle

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1827 - Minimum Operations to Make the Array Increasing

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1826 - Faulty Sensor

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1825 - Finding MK Average

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1824 - Minimum Sideway Jumps

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1823 - Find the Winner of the Circular Game

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1822 - Sign of the Product of an Array

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1821 - Find Customers With Positive Revenue this Year

Posted on November 24, 2020

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1820 - Maximum Number of Accepted Invitations

Posted on November 23, 2020

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1819 - Number of Different Subsequences GCDs

Posted on November 22, 2020

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1818 - Minimum Absolute Sum Difference

Posted on November 21, 2020

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1817 - Finding the Users Active Minutes

Posted on November 20, 2020

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1816 - Truncate Sentence

Posted on November 19, 2020

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1815 - Maximum Number of Groups Getting Fresh Donuts

Posted on November 18, 2020

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1814 - Count Nice Pairs in an Array

Posted on November 17, 2020

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1813 - Sentence Similarity III

Posted on November 16, 2020

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1812 - Determine Color of a Chessboard Square

Posted on November 15, 2020

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1811 - Find Interview Candidates

Posted on November 14, 2020

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1810 - Minimum Path Cost in a Hidden Grid

Posted on November 13, 2020

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1809 - Ad-Free Sessions

Posted on November 12, 2020

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1808 - Maximize Number of Nice Divisors

Posted on November 11, 2020

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1807 - Evaluate the Bracket Pairs of a String

Posted on November 10, 2020

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1806 - Minimum Number of Operations to Reinitialize a Permutation

Posted on November 9, 2020

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1805 - Number of Different Integers in a String

Posted on November 8, 2020

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1804 - Implement Trie II (Prefix Tree)

Posted on November 7, 2020

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1803 - Count Pairs With XOR in a Range

Posted on November 6, 2020

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

Posted on November 5, 2020

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1801 - Number of Orders in the Backlog

Posted on November 4, 2020

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1800 - Maximum Ascending Subarray Sum

Posted on November 3, 2020

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1799 - Maximize Score After N Operations

Posted on November 2, 2020

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1798 - Maximum Number of Consecutive Values You Can Make

Posted on November 1, 2020

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1797 - Design Authentication Manager

Posted on October 31, 2020

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1796 - Second Largest Digit in a String

Posted on October 30, 2020

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1795 - Rearrange Products Table

Posted on October 29, 2020

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1794 - Count Pairs of Equal Substrings With Minimum Difference

Posted on October 28, 2020

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1793 - Maximum Score of a Good Subarray

Posted on October 27, 2020

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1792 - Maximum Average Pass Ratio

Posted on October 26, 2020

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1791 - Find Center of Star Graph

Posted on October 25, 2020

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1790 - Check if One String Swap Can Make Strings Equal

Posted on October 24, 2020

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1789 - Primary Department for Each Employee

Posted on October 23, 2020

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1788 - Maximize the Beauty of the Garden

Posted on October 22, 2020

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1787 - Make the XOR of All Segments Equal to Zero

Posted on October 21, 2020

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1786 - Number of Restricted Paths From First to Last Node

Posted on October 20, 2020

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1785 - Minimum Elements to Add to Form a Given Sum

Posted on October 19, 2020

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

Posted on October 18, 2020

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1783 - Grand Slam Titles

Posted on October 17, 2020

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1782 - Count Pairs Of Nodes

Posted on October 16, 2020

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1781 - Sum of Beauty of All Substrings

Posted on October 15, 2020

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

Posted on October 14, 2020

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

Posted on October 13, 2020

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1778 - Shortest Path in a Hidden Grid

Posted on October 12, 2020

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1777 - Product's Price for Each Store

Posted on October 11, 2020

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1776 - Car Fleet II

Posted on October 10, 2020

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1775 - Equal Sum Arrays With Minimum Number of Operations

Posted on October 9, 2020

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1774 - Closest Dessert Cost

Posted on October 8, 2020

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1773 - Count Items Matching a Rule

Posted on October 7, 2020

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1772 - Sort Features by Popularity

Posted on October 6, 2020

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1771 - Maximize Palindrome Length From Subsequences

Posted on October 5, 2020

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1770 - Maximum Score from Performing Multiplication Operations

Posted on October 4, 2020

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

Posted on October 3, 2020

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1768 - Merge Strings Alternately

Posted on October 2, 2020

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1767 - Find the Subtasks That Did Not Execute

Posted on October 1, 2020

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1766 - Tree of Coprimes

Posted on September 30, 2020

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1765 - Map of Highest Peak

Posted on September 29, 2020

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1764 - Form Array by Concatenating Subarrays of Another Array

Posted on September 28, 2020

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1763 - Longest Nice Substring

Posted on September 27, 2020

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1762 - Buildings With an Ocean View

Posted on September 26, 2020

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1761 - Minimum Degree of a Connected Trio in a Graph

Posted on September 25, 2020

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1760 - Minimum Limit of Balls in a Bag

Posted on September 24, 2020

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1759 - Count Number of Homogenous Substrings

Posted on September 23, 2020

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1758 - Minimum Changes To Make Alternating Binary String

Posted on September 22, 2020

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1757 - Recyclable and Low Fat Products

Posted on September 21, 2020

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1756 - Design Most Recently Used Queue

Posted on September 20, 2020

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1755 - Closest Subsequence Sum

Posted on September 19, 2020

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1754 - Largest Merge Of Two Strings

Posted on September 18, 2020

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1753 - Maximum Score From Removing Stones

Posted on September 17, 2020

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1752 - Check if Array Is Sorted and Rotated

Posted on September 16, 2020

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1751 - Maximum Number of Events That Can Be Attended II

Posted on September 15, 2020

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1750 - Minimum Length of String After Deleting Similar Ends

Posted on September 14, 2020

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1749 - Maximum Absolute Sum of Any Subarray

Posted on September 13, 2020

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1748 - Sum of Unique Elements

Posted on September 12, 2020

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1747 - Leetflex Banned Accounts

Posted on September 11, 2020

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

Posted on September 8, 2020

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1743 - Restore the Array From Adjacent Pairs

Posted on September 7, 2020

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1742 - Maximum Number of Balls in a Box

Posted on September 6, 2020

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1741 - Find Total Time Spent by Each Employee

Posted on September 5, 2020

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1740 - Find Distance in a Binary Tree

Posted on September 4, 2020

Welcome to Subscribe On Youtube