The thief has found himself a new place for his thievery again. There is only one entrance to this area, called the "root." Besides the root, each house has one and only one parent house. After a tour, the smart thief realized that "all hou…

/** * Definition for a binary tree node. * public class TreeNode { * public int val; * public TreeNode left; * public TreeNode right; * public TreeNode(int x) { val = x; } * } */ public class Solution { public int Rob(TreeNode root) { int[] num = dfs…

Leetcode 337. 打家劫舍 III 在上次打劫完一条街道之后和一圈房屋后,小偷又发现了一个新的可行窃的地区.这个地区只有一个入口,我们称之为"根". 除了"根"之外,每栋房子有且只有一个"父"房子与之相连.一番侦察之后,聪明的小偷意识到"这个地方的所有房屋的排列类似于一棵二叉树". 如果两个直接相连的房子在同一天晚上被打劫,房屋将自动报警. 计算在不触动警报的情况下,小偷一晚能够盗取的最高金额. 输入: [3,2,3…

House Robber III The thief has found himself a new place for his thievery again. There is only one entrance to this area, called the "root." Besides the root, each house has one and only one parent house. After a tour, the smart thief realized t…

大家好!我是 Johngo 呀! 和大家一起刷题不快不慢,没想到已经进行到了第二阶段,「动态规划」这部分题目很难,而且很不容易理解,目前我的题目做了一半,凭着之前对于「动态规划」的理解和最近做的题目做一个阶段性的总结!这篇文章其实是我之前写过的一篇,然后现在拿来再做一个润色. 「动态规划」看这篇我...保证可以! 目标:给小白以及没有明确思路的同学一个指引! 拍胸脯保证:读完这篇文章,对于大多数的动态规划的思维逻辑能有一个质的提升. 本文较长,建议先收藏,或者直接到 GitHub 中下载文档(h…