[TOC] 窗口尺寸 === 概述 类型|说明 | Size | 当前窗口实际大小，通过 获取； Client Size | 客户区大小； Best Size | 最合适的大小，用户可以实现 方法，自定义返回最合适的大小； Best Client Size | 最合适的客户区大小，用户可以实现 方法 ...

"104. Maximum Depth of Binary Tree Easy" 方法 使用递归 Time complexity : we visit each node exactly once, thus the time complexity is \mathcal{O}(N)O(N), wh ...

Given a non-empty array of integers, return the third maximum number in this array. If it does not exist, return the maximum number. The time complexi ...

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https://leetcode.com/problems/maximum-depth-of-n-ary-tree/description/ 非常简单的题目，连edge case 都没有。思路就是：最大深度 = 孩子的最大深度 + 1 ...

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Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the farthest l ...

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