LeetCode-Easy刷题(21) Maximum Depth of Binary Tree

Posted 2022-05-31 当以乐

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.

找出二叉树的最大深度.

  public int maxDepth(TreeNode root) 

        if(root ==null)
            return 0;
        

        return Math.max(maxDepth(root.left), maxDepth(root.right)) +1;