There are N piles of stones arranged in a row.  The i-th pile has stones[i] stones. A move consists of merging exactly K consecutive piles into one pile, and the cost of this move is equal to the total number of stones in these K piles. Find the mini…

原题链接在这里:https://leetcode.com/problems/minimum-cost-to-merge-stones/ 题目: There are N piles of stones arranged in a row.  The i-th pile has stones[i] stones. A move consists of merging exactly K consecutive piles into one pile, and the cost of this mov…

There are N piles of stones arranged in a row.  The i-th pile has stones[i] stones. A move consists of merging exactly K consecutive piles into one pile, and the cost of this move is equal to the total number of stones in these K piles. Find the mini…

There are N piles of stones arranged in a row.  The i-th pile has stones[i] stones. A move consists of merging exactly K consecutive piles into one pile, and the cost of this move is equal to the total number of stones in these K piles. Find the mini…

2019-07-07 15:48:46 问题描述: 问题求解: 最初看到这个问题的时候第一反应就是这个题目和打破气球的题目很类似. 但是我尝试了使用dp将问题直接转为直接合并到一个堆问题复杂度迅速提高并且并没有ac,这里的思想是和打爆气球一致的,就是找最后合并的部分. Discuss里给出了可以过的代码,思路其实和打破气球是不一致的. 这里的想法是先把i-j的数组分成K堆,然后就可以将这K堆直接merge到1堆中.因此就还有一个维度就是堆数. 总的来说,dp的题目还是非常的灵活,需要多多练习.…

Leetcode之动态规划(DP)专题-983. 最低票价(Minimum Cost For Tickets) 在一个火车旅行很受欢迎的国度,你提前一年计划了一些火车旅行.在接下来的一年里,你要旅行的日子将以一个名为 days 的数组给出.每一项是一个从 1 到 365 的整数. 火车票有三种不同的销售方式: 一张为期一天的通行证售价为 costs[0] 美元: 一张为期七天的通行证售价为 costs[1] 美元: 一张为期三十天的通行证售价为 costs[2] 美元. 通行证允许数天无限制的旅…

原题链接在这里:https://leetcode.com/problems/minimum-cost-for-tickets/ 题目: In a country popular for train travel, you have planned some train travelling one year in advance.  The days of the year that you will travel is given as an array days.  Each day is…

Description Dearboy, a goods victualer, now comes to a big problem, and he needs your help. In his sale area there are N shopkeepers (marked from 1 to N) which stocks goods from him.Dearboy has M supply places (marked from 1 to M), each provides K di…

题面 Dearboy, a goods victualer, now comes to a big problem, and he needs your help. In his sale area there are N shopkeepers (marked from 1 to N) which stocks goods from him.Dearboy has M supply places (marked from 1 to M), each provides K different k…

POJ 2516 Minimum Cost (网络流,最小费用流) Description Dearboy, a goods victualer, now comes to a big problem, and he needs your help. In his sale area there are N shopkeepers (marked from 1 to N) which stocks goods from him.Dearboy has M supply places (marke…