LeetCode-Tree

Date: 2020-02-29 Sat Category: LeetCode

[TOC]

通用数据结构定义

/**
 * Definition for a binary tree node.
 * struct TreeNode {
 *     int val;
 *     TreeNode *left;
 *     TreeNode *right;
 *     TreeNode(int x) : val(x), left(NULL …