* @ ret :*/intgetBinTreeHeight(structTreeNode*root) {intiLeftHeight =0;intiRightHeight =0;if(!root)return0;if(!root->left && !root->right)return1;if(root->left) { iLeftHeight= getBinTreeHeight(root->left); }if(
【LeetCode】21. Diameter Binary Tree· 二叉树的直径 秦她的菜 吉利 程序员 来自专栏 · Leetcode刷题笔记 题目描述 英文版描述 Given the root of a binary tree, return the length of the diameter of the tree. The diameter of a binary tree is the length of the longest path between any ...
Given the root of a binary tree, return its maximum depth.A binary tree's maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. 英文版地址 leetcode.com/problems/m 中文版描述 给定一个二叉树,找出其最大深度。二叉树的深度为根节点到...
这种方法耗时464ms。 第二遍刷leetcode时候的java代码也放上来,耗时250ms。 1publicclassSolution {2publicbooleanisBalanced(TreeNode root) {3height(root);4returnisBlanced;5}6booleanisBlanced =true;7privateintheight(TreeNode root){8if(root ==null)9return0;10intleftheight =height(root.left);11int...
Can you solve this real interview question? Maximum Depth of Binary Tree - Given the root of a binary tree, return its maximum depth. A binary tree's maximum depth is the number of nodes along the longest path from the root node down to the farthest lea
Can you solve this real interview question? Minimum Depth of Binary Tree - Given a binary tree, find its minimum depth. The minimum depth is the number of nodes along the shortest path from the root node down to the nearest leaf node. Note: A leaf is a
Given a binary tree, return the level order traversal of its nodes' values. (ie, from left to right, level by level). For example: Given binary tree [3,9,20,null,null,15,7], 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ...
leetCode 104. Maximum Depth of Binary Tree 二叉树问题,104.MaximumDepthofBinaryTreeGivenabinarytree,finditsmaximumdepth.Themaximumdepthisthenumberofnodesalongthelongestpathfromtherootnodedowntothefarthestleafnode.同Minimum
给定两个整数数组,preorder和postorder,其中preorder是一个具有无重复值的二叉树的前序遍历,postorder是同一棵树的后序遍历,重构并返回二叉树。 如果存在多个答案,您可以返回其中任何一个。 示例1: 输入:preorder = [1,2,4,5,3,6,7], postorder = [4,5,2,6,7,3,1]输出:[1,2,3,4,5,6,7] ...
145. 二叉树的后序遍历 - 给你一棵二叉树的根节点 root ,返回其节点值的 后序遍历 。 示例 1: 输入:root = [1,null,2,3] 输出:[3,2,1] 解释: [https://assets.leetcode.com/uploads/2024/08/29/screenshot-2024-08-29-202743.png] 示例 2: 输入:root =