/*** Definition for a binary tree node. * public class TreeNode { * int val; * TreeNode left; * TreeNode right; * TreeNode(int x) { val = x; } * }*/classSolution {publicbooleanisBalanced(TreeNode root) {if(root
LeetCode 110. Balanced Binary Tree Description Given a binary tree, determine if it is height-balanced. For this problem, a height-balanced binary tree is defined as: a binary tree in which the depth of the two subtrees of every node never differ by more than 1. Example 1: Given the ...
* Definition for a binary tree node. * public class TreeNode { * int val; * TreeNode left; * TreeNode right; * TreeNode() {} * TreeNode(int val) { this.val = val; } * TreeNode(int val, TreeNode left, TreeNode right) { * this.val = val; * this.left = left; * this....
LeetCode—110. Balanced Binary Tree 题目 https://leetcode.com/problems/balanced-binary-tree/description/ 判断一棵二叉树是否是平衡二叉树。 平衡二叉树指的是,两棵子树的任一节点的深度相差不超过1. 思路及解法 首先写一个函数用来得到每一个子树的深度,然后递归调用原函数,判断两棵子树的深度差... ...
Leetcode每日一题:110.balanced-binary-tree(平衡二叉树),思路:依旧是递归,这里暂时只想到了比较笨的方法,就是对从上至下对当前结点的左右孩子,遍历得出它们高度,然后做差,判断是否满足平衡二叉树的条件;想过动态规划和从下至上的思想,但技术没到位,没能实现出来
Given a binary tree, determine if it is height-balanced. For this problem, a height-balanced binary tree is defined as: a binary tree in which the depth of the two subtrees ofeverynode never differ by more than 1. Example 1:
[leetcode] 110. Balanced Binary Tree (easy)原题链接水题 深度搜索每一节点的左右深度,左右深度差大于1就返回false。class Solution { public: bool isBalanced(TreeNode *root) { bool flag = true; if (!root) return true; dfs(root, flag); ...
a binary tree in which the left and right subtrees of every node differ in height by no more than 1. 英文版地址 leetcode.com/problems/b 中文版描述 给定一个二叉树,判断它是否是高度平衡的二叉树。本题中,一棵高度平衡二叉树定义为:一个二叉树每个节点 的左右两个子树的高度差的绝对值不超过 1 ...
http://bangbingsyb.blogspot.com/2014/11/leetcode-balanced-binary-tree.html 我想说明的是,什么 depth of tree and height of tree depth of node n: length of path from n to root. 所以说, depth of subtree 指的应该就是 这棵subtree最大的深度,以该subtree结点为root。
Runtime: 64 ms, faster than 46.61% of Python3 online submissions for Balanced Binary Tree. Memory Usage: 19.4 MB, less than 5.27% of Python3 online submissions for Balanced Binary Tree. classSolution:defisBalanced(self,root:TreeNode)->bool:defheight(node):ifnode==None:return0hl=height(node...