Given a binary search tree and the lowest and highest boundaries as L and R, trim the tree so that all its elements lies in [L, R] (R >= L). You might need to change the root of the tree, so the result should return the new root of the trimmed binary…

Given a binary search tree and the lowest and highest boundaries as L and R, trim the tree so that all its elements lies in [L, R] (R >= L). You might need to change the root of the tree, so the result should return the new root of the trimmed binary…

题目要求 Given a binary search tree and the lowest and highest boundaries as L and R, trim the tree so that all its elements lies in [L, R] (R >= L). You might need to change the root of the tree, so the result should return the new root of the trimmed b…

题目: Given a binary search tree and the lowest and highest boundaries as L and R, trim the tree so that all its elements lies in [L, R] (R >= L). You might need to change the root of the tree, so the result should return the new root of the trimmed bi…

题目: Given a binary search tree and the lowest and highest boundaries as L and R, trim the tree so that all its elements lies in [L, R] (R >= L). You might need to change the root of the tree, so the result should return the new root of the trimmed bi…

根据BST的特点,如果小于L就判断右子树,如果大于R就判断左子树 递归地建立树 public TreeNode trimBST(TreeNode root, int L, int R) { if (root==null) return null; if (root.val<L) return trimBST(root.right,L,R); if (root.val>R) return trimBST(root.left,L,R); TreeNode res = new TreeNode(ro…

669. 修剪二叉搜索树 669. Trim a Binary Search Tree 题目描述 LeetCode LeetCode669. Trim a Binary Search Tree简单 Java 实现 TreeNode Class public class TreeNode { int val; TreeNode left; TreeNode right; TreeNode(int x) { val = x; } } class Solution { public TreeNode…

leetcode算法: Find Bottom Left Tree ValueGiven a binary tree, find the leftmost value in the last row of the tree.Example 1:Input: 2 / \ 1 3Output:1Example 2: Input: 1 / \ 2 3 / / \ 4 5 6 / 7Output:7Note: You may assume the tree (i.e., the given root n…

problem 669. Trim a Binary Search Tree 参考 1. Leetcode_easy_669. Trim a Binary Search Tree; 完…

Week2 - 669. Trim a Binary Search Tree & 617. Merge Two Binary Trees 669.Trim a Binary Search Tree Given a binary search tree and the lowest and highest boundaries as L and R, trim the tree so that all its elements lies in [L, R] (R >= L). You migh…