题目: You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed, the only constraint stopping you from robbing each of them is that adjacent houses have security system connected and it will a…

动态规划 刷题方法 告别动态规划,连刷 40 道题,我总结了这些套路,看不懂你打我 - 知乎 北美算法面试的题目分类,按类型和规律刷题 题目分类 一维dp House Robber : 求最大最小值 House Robber II: 求最大最小值 House Robber III: 求最大最小值 Decode Ways : 求方法总数 Word Break : 求是否可行 Maximum Product Subarray : 求最大最小值 Ugly Number II : 这道题不太像是dp I…

213. House Robber II     Total Accepted: 24216 Total Submissions: 80632 Difficulty: Medium Note: This is an extension of House Robber. After robbing those houses on that street, the thief has found himself a new place for his thievery so that he will…

Leetcode之动态规划(DP)专题-198. 打家劫舍(House Robber) 你是一个专业的小偷,计划偷窃沿街的房屋.每间房内都藏有一定的现金,影响你偷窃的唯一制约因素就是相邻的房屋装有相互连通的防盗系统,如果两间相邻的房屋在同一晚上被小偷闯入,系统会自动报警. 给定一个代表每个房屋存放金额的非负整数数组,计算你在不触动警报装置的情况下,能够偷窃到的最高金额. 示例 1: 输入: [1,2,3,1] 输出: 4 解释: 偷窃 1 号房屋 (金额 = 1) ,然后偷窃 3 号房屋 (金额…

You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed, the only constraint stopping you from robbing each of them is that adjacent houses have security system connected and it will autom…

题意:有一个整数序列,从中挑出一些数字,使得总和是最大,前提是,相邻的两个数字中只能挑其一.比如1 2 3 就只能挑2或者1和3. 思路:很直观的题,dp思想.降低规模,从小规模开始考虑.如果只有两个数字,那么结果很明显就能知道是其中之大者.假如已经知道了第 i 个之前的决策,那么第i+2个之前的决策也就知道了.前两个数字已经由人工得知,设为dp[0]和dp[1],那么dp[2]=max(dp[0]+nums[2], dp[1]).状态转移方程dp[i]=max(dp[i-1], dp[i-2]…

Note: This is an extension of House Robber. After robbing those houses on that street, the thief has found himself a new place for his thievery so that he will not get too much attention. This time, all houses at this place are arranged in a circle.…

You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed, the only constraint stopping you from robbing each of them is that adjacent houses have security system connected and it will autom…

原题链接在这里:https://leetcode.com/problems/house-robber-iii/ 题目: 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 hous…

打算专题训练下DP,做一道帖一道吧~~现在的代码风格完全变了~~大概是懒了.所以.将就着看吧~哈哈 Description The aspiring Roy the Robber has seen a lot of American movies, and knows that the bad guys usually gets caught in the end, often because they become too greedy. He has decided to work in t…