最小深度是指树的根结点到最近叶子结点的最短路径上结点的数量。 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. 示例1: 输入: (1
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. 示例1 输入 复制 {1,2,3,4,5} 输出 复制 2 /** * struct TreeNode { ...
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. 输入描述: 输出描述: 示例1: 输入: 输出: 代码: import java.util.LinkedList; import java.util.Queue; public class Solution { publi...
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 node with no children. Example: Given binary tree[3,9,20,null,null,15,7], 3 / \ 9 20 / \ 15 7 ...
111. Minimum Depth of Binary TreeEasy Topics Companies 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 node with no children. Example 1: Input: root = ...
Diameter of Binary Tree 题目描述:找出二叉树的最长直径(也就是所以节点连成最长的路径长度) 题目链接:Leetcode 543. Diameter of Binary Tree 题目思路:用到的就是经典的递归返回值的形式,不断返回左子树和右子树的深度,然后过程中更新最长的路径。 代码如下 参考链接 543. Diameter of Binary Tree......
Minimum Depth of Binary Tree 二叉树的最小深度 采用递归的方式求左右结点的高度,注意判断一个结点是否是叶子结点(左右子树都不存大)。 int minDepth(TreeNode *root) { return minDepth(root, false); } int minDepth(TreeNode *root, bool hasbrothers)...
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. 这题采用递归很简单,但是要注意函数minDepth()最后的return,要像如......
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. 本题思路: 1. 每进入一层用一个变量(这里是levelNum)记录当前从根节点到这一层节点的节点数 ...
LeetCode 111 题,Minimum Depth of Binary Tree 解题思路 1、读题,求解二叉树的最小Depth。 2、用bfs 去解决,队列带上每层的层数。当有一个节点的左右子树都为空时,返回当前层数,就找到解。 Python 代码 # De…