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653. Two Sum IV - Input is a BST

Given a Binary Search Tree and a target number, return true if there exist two elements in the BST such that their sum is equal to the given target.

Example 1:

Input:
    5
   / \
  3   6
 / \   \
2   4   7

Target = 9

Output: True

 

Example 2:

Input:
    5
   / \
  3   6
 / \   \
2   4   7

Target = 28

Output: False

 

Difficulty:

Easy

Lock:

Normal

Company:

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Problem Solution

653-Two-Sum-IV-Input-is-a-BST

All Problems:

Link to All Problems
All contents and pictures on this website come from the Internet and are updated regularly every week. They are for personal study and research only, and should not be used for commercial purposes. Thank you for your cooperation.