[LeetCode][Java]Maximum Depth of Binary Tree
https://leetcode.com/problems/maximum-depth-of-binary-tree/
Maximum Depth of Binary Tree
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 leaf node
1 /** 2 * Definition for binary tree 3 * public class TreeNode { 4 * int val; 5 * TreeNode left; 6 * TreeNode right; 7 * TreeNode(int x) { val = x; } 8 * } 9 */ 10 public class Solution { 11 public int maxDepth(TreeNode root) { 12 if (root == null){ 13 return 0; 14 } 15 int leftDepth = maxDepth(root.left); 16 int rightDepth = maxDepth(root.right); 17 return Math.max(leftDepth, rightDepth) + 1; 18 } 19 }
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