Maximum Depth of Binary Tree
描述
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.
分析
无
代码
// Maximum Depth of Binary Tree
// 时间复杂度O(n)，空间复杂度O(logn)
class Solution {
public int maxDepth(TreeNode root) {
if (root == null) return 0;
return Math.max(maxDepth(root.left), maxDepth(root.right)) + 1;
}
}