LeetCode之104. Maximum Depth of Binary Tree
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递归遍历即可
AC代码:
/** * Definition for a binary tree node. * public class TreeNode { * int val; * TreeNode left; * TreeNode right; * TreeNode(int x) { val = x; } * } */ public class Solution { public int maxDepth(TreeNode root) { if(root==null) return 0; return Math.max(maxDepth(root.left),maxDepth(root.right))+1; } }
题目来源: https://leetcode.com/problems/maximum-depth-of-binary-tree/