您需要在二叉树的每一行中找到最大的值. 示例: 输入: 1 / \ 3 2 / \ \ 5 3 9 输出: [1, 3, 9] class Solution { public: vector<int> largestValues(TreeNode* root) { vector<int> res; if(root == NULL) return res; queue<TreeNode *> q; q.push(root); while(!q.empty()) { int…

在二叉树的每一行中找到最大的值.示例:输入:           1         /  \        3   2       /  \    \        5   3    9 输出: [1, 3, 9] 详见:https://leetcode.com/problems/find-largest-value-in-each-tree-row/description/ C++: /** * Definition for a binary tree node. * struct Tree…

515. 在每个树行中找最大值 515. Find Largest Value in Each Tree Row 题目描述 You need to find the largest value in each row of a binary tree. 您需要在二叉树的每一行中找到最大的值. LeetCode515. Find Largest Value in Each Tree Row Example: Input: 1 / \ 3 2 / \ \ 5 3 9 Output: [1, 3, 9…

Leetcode之深度优先搜索(DFS)专题-515. 在每个树行中找最大值(Find Largest Value in Each Tree Row) 深度优先搜索的解题详细介绍,点击 您需要在二叉树的每一行中找到最大的值. 示例: 输入: 1 / \ 3 2 / \ \ 5 3 9 输出: [1, 3, 9] 分析:题意很简单,直接DFS. /** * Definition for a binary tree node. * public class TreeNode { * int val;…

You need to find the largest value in each row of a binary tree. Example: Input: 1 / \ 3 2 / \ \ 5 3 9 Output: [1, 3, 9] 您需要在二叉树的每一行中找到最大的值. 示例: 输入: 1 / \ 3 2 / \ \ 5 3 9 输出: [1, 3, 9] 48ms /** * Definition for a binary tree node. * public class Tree…

lc 515 Find Largest Value in Each Tree Row 515 Find Largest Value in Each Tree Row You need to find the largest value in each row of a binary tree. Example: Input: 1 / \ 3 2 / \ \ 5 3 9 Output: [1, 3, 9] BFS Accepted 相比之前的几道用到BFS算法的题目,这题相对来说会繁琐一些,需要用…

You need to find the largest value in each row of a binary tree. Example: Input: 1 / \ 3 2 / \ \ 5 3 9 Output: [1, 3, 9] 这道题让我们找二叉树每行的最大的结点值,那么实际上最直接的方法就是用层序遍历,然后在每一层中找到最大值,加入结果res中即可,参见代码如下: 解法一: class Solution { public: vector<int> largestValues(T…

You need to find the largest value in each row of a binary tree. Example: Input:    1   / \  3 2 / \ \ 5 3 9 Output: [1, 3, 9] 思路: 层次遍历,每一层选出当前层最大值. vector<int> largestValues(TreeNode* root) { vector<int>result; if (root == NULL)return result;…

'''You need to find the largest value in each row of a binary tree.Example:Input: 1 / \ 3 2 / \ \ 5 3 9Output: [1, 3, 9]'''# Definition for a binary tree node.# class TreeNode(object):# def __init__(self, x):# self.val = x# self.left = None# self.rig…

You need to find the largest value in each row of a binary tree. Example: Input: 1 / \ 3 2 / \ \ 5 3 9 Output: [1, 3, 9] --------------------------------------------------------------------------就是找出二叉树的每一层的最大数.用BFS较为简单. C++代码: /** * Definition for a…