queue<TreeNode*> q{{root}};while(!q.empty()) { TreeNode* t = q.front(); q.pop();if(t->val!= root->val)returnfalse;if(t->left) q.push(t->left);if(t->right) q.push(t->right); }returntrue; } }; Github 同步地址: https://github.com/grandyang/leetcode/issues/965 类似...
Can you solve this real interview question? Univalued Binary Tree - A binary tree is uni-valued if every node in the tree has the same value. Given the root of a binary tree, return true if the given tree is uni-valued, or false otherwise. Example 1
A binary tree isunivaluedif every node in the tree has the same value. Returntrueif and only if the given tree is univalued. Example 1: Input:[1,1,1,1,1,null,1] Output:true Example 2: Input:[2,2,2,5,2] Output:false Note: The number of nodes in the given tree will be in ...
python代码: # Definition for a binary tree node.# class TreeNode(object):# def __init__(self, x):# self.val = x# self.left = None# self.right = Noneclass Solution(object):def isUnivalTree(self, root):""":type root: TreeNode:rtype: bool"""left_correct = not root.left or r...
code 代码语言:javascript 代码运行次数:0 运行 AI代码解释 type TreeNode struct { Val int Left *TreeNode Right *TreeNode } func isUnivalTree(root *TreeNode) bool { if root == nil { return true } if root.Left != nil && root.Val != root.Left.Val { return false } if root.Right !
【Leetcode_easy】965. Univalued Binary Tree problem 965. Univalued Binary Tree 参考 1. Leetcode_easy_965. Univalued Binary Tree; 完
https://leetcode.com/problems/univalued-binary-tree/ 题目描述 A binary tree is univalued if every node in the tree has the same value. Return true if and only if the given tree is univalued. Example 1: ...
My Solutions to Leetcode problems. All solutions support C++ language, some support Java and Python. Multiple solutions will be given by most problems. Enjoy:) 我的Leetcode解答。所有的问题都支持C++语言,一部分问题支持Java语言。近乎所有问题都会提供多个算
https://leetcode.com/problems/univalued-binary-tree/) 本质上就是个遍历啊 递归 classSolution{publicbooleanisUnivalTree(TreeNoderoot){if(root==null){returntrue;}int[]tempNum=newint[]{root.val};returnhelper(root,tempNum);}privatebooleanhelper(TreeNoderoot,int[]tempNum){if(root==null){returntr...
今天介绍的是LeetCode算法题中Easy级别的第228题(顺位题号是965)。如果树中的每个节点具有相同的值,则二叉树是单一的。当且仅当给定树是单一时才返回true。 1/ \11/ \ \111 输入: [1,1,1,1,1,null,1] 输出: true 2/ \22/ \52 输入: [2,2,2,5,2] ...