剑指offer55题

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。

package com.algorithm05;

import com.tools.TreeBinaryFunction;
import com.tools.TreeNode;

public class Algorithm55 {

	public static int TreeDepth(TreeNode root) {

		if(root==null)
			return 0;
		int left,right;
		left = TreeDepth(root.left);
		right = TreeDepth(root.right);

		return (left>right)?(left+1):(right+1);
    }
	public static void main(String[] args) {
		TreeNode treeNode = new TreeNode(0);
		TreeBinaryFunction.CreateTreeBinary(treeNode);
		System.err.println(TreeDepth(treeNode));
	}
}