闲来无事：二叉树的深度

题目描述

输入一棵二叉树，求该树的深度。从根结点到叶结点依次经过的结点（含根、叶结点）形成树的一条路径，最长路径的长度为树的深度。

/*
public class TreeNode {
    int val = 0;
    TreeNode left = null;
    TreeNode right = null;
    public TreeNode(int val) {
        this.val = val;
    }
};*/
public class Solution {
    public int TreeDepth(TreeNode pRoot)
    {
        if(null == pRoot) return 0;
        int left = TreeDepth(pRoot.left);
        int right = TreeDepth(pRoot.right);
        return left>right?(left+1):(right+1);
    
    }
}