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[leetcode] 104. 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.

递归遍历 左子树 和 右子树

一刷:

    public int maxDepth(TreeNode root) {        if(root == null){            return 0;        }        int left = maxDepth(root.left);        int right = maxDepth(root.right);        return Math.max(left , right) +1;    }

 

[leetcode] 104. Maximum Depth of Binary Tree