[LeetCode] Closest Binary Search Tree Value - jcliBlogger - 博客园



[LeetCode] Closest Binary Search Tree Value - jcliBlogger - 博客园

[LeetCode] Closest Binary Search Tree Value

Problem Description:

Given a non-empty binary search tree and a target value, find the value in the BST that is closest to the target.

Note:

  • Given target value is a floating point.
  • You are guaranteed to have only one unique value in the BST that is closest to the target.

Well, this problem can be solved easily using recursion: just find the closest value in the left and right subtrees and compare them with root -> val. The code is as follows.


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