构造分组背包（CF）

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构造分组背包（CF）

Ivan is a student at Berland State University (BSU). There are n days in Berland week, and each of these days Ivan might have some classes at the university. There are m working hours during each Berland day, and each lesson at the university lasts e…

#分组背包 Educational Codeforces Round 39 (Rated for Div. 2) D. Timetable

2018-03-11 http://codeforces.com/contest/946/problem/D D. Timetable time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Ivan is a student at Berland State University (BSU). There are n days in…

HDU 1712 ACboy needs your help（分组背包）

题意:给你n的课程组,每个课程组有m个课程,每个课程有一个完成时间与价值.问在m天内每组课程组最多选择一个,这样可以得到的最大价值是多少题解:分组背包,其实就是每个课程组进行01背包,再在课程组内部进行枚举课程,但是这儿必须将枚举课程放在最里层才能保证最多选择一个 #include<set> #include<map> #include<queue> #include<stack> #include<cmath> #include<vec…

Codeforces Round #383 (Div. 2) D 分组背包

给出一群女孩的重量和颜值和她们的朋友关系现在有一个舞台 ab是朋友 bc是朋友 ac就是朋友给出最大承重可以邀请这些女孩来玩对于每一个朋友团体全邀请or邀请一个or不邀请问能邀请的女孩的最大颜值比赛的时候一看就是个背包问题似乎在背包九讲上面见过..但是不会写于是百度.."背包一类选一个" 百度出了分组背包并且第一个搜索结果就是类似于原题的东西.. 只不过分组背包的模板是一个or不要加了个bfs 把朋友团体作为一个新朋友加入进这个团体改了改代码..就a了..…

HDU 3033 分组背包变形（每种至少一个）

I love sneakers! Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4464 Accepted Submission(s): 1824 Problem Description After months of hard working, Iserlohn finally wins awesome amount of sc…

HDU 1712 分组背包

ACboy needs your help Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4912 Accepted Submission(s): 2651 Problem Description ACboy has N courses this term, and he plans to spend at most M days…

Codeforces Round #383 (Div. 2) D. Arpa's weak amphitheater and Mehrdad's valuable Hoses(分组背包+dsu)

D. Arpa's weak amphitheater and Mehrdad's valuable Hoses Problem Description: Mehrdad wants to invite some Hoses to the palace for a dancing party. Each Hos has some weight wi and some beauty bi. Also each Hos may have some friends. Hoses are divided…