Description Thanks to a certain "green" resources company, there is a new profitable industry of oil skimming. There are large slicks of crude oil floating in the Gulf of Mexico just waiting to be scooped up by enterprising oil barons. One such…

原文链接http://www.cnblogs.com/zhouzhendong/p/8231146.html 题目传送门 - HDU4185 题意概括 每次恰好覆盖相邻的两个#,不能重复,求最大覆盖次数.(引用大佬的http://blog.csdn.net/u011721440/article/details/38144339) 题解 我们对于每两个相邻#的建边(来回两条). 然后我们把格子黑白染色一下,发现黑点只会向白点连边,白点只会连向黑点连边,于是这个就是二分图了. 然后跑一跑匈牙利. 答…

Oil Skimming Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3903    Accepted Submission(s): 1616 题目链接:acm.hdu.edu.cn/showproblem.php?pid=4185 Description: Thanks to a certain "green" resou…

Oil Skimming Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Submit Status Practice HDU 4185 Description Thanks to a certain "green" resources company, there is a new profitable industry of oil skimming. There ar…

题目链接:https://vjudge.net/problem/HDU-4185 Oil Skimming Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3016    Accepted Submission(s): 1262 Problem Description Thanks to a certain "green" re…

如下图:要求最多可以凑成多少对对象 大佬博客: https://blog.csdn.net/cillyb/article/details/55511666 https://blog.csdn.net/denghecsdn/article/details/77619308 https://www.cnblogs.com/wangjunyan/p/5563154.html 模板: int link[maxn],vis[maxn]; bool dfs(int x) { ; i <= num; i++)…

Problem Description Thanks to a certain "green" resources company, there is a new profitable industry of oil skimming. There are large slicks of crude oil floating in the Gulf of Mexico just waiting to be scooped up by enterprising oil barons. O…

Oil Skimming Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3426    Accepted Submission(s): 1432 Problem Description Thanks to a certain "green" resources company, there is a new profitabl…

http://acm.hdu.edu.cn/showproblem.php?pid=3729 I'm Telling the Truth Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1427    Accepted Submission(s): 719 Problem Description After this year’s col…

题意 现在要将5种型号的衣服分发给n个参赛者,然后给出每个参赛者所需要的衣服的尺码的大小范围,在该尺码范围内的衣服该选手可以接受,再给出这5种型号衣服各自的数量,问是否存在一种分配方案使得每个选手都能够拿到自己尺码范围内的衣服. 思路 明显的二分图多重最大匹配问题:每个点能匹配的边不再限制1个,而是多个. 做法:最大流.虽说也有对应的匈牙利算法,但是我还是图省事用最大流做了. 建图:源点连接每个型号的衣服,容量为能够匹配的个数(数量),汇点连接每个队员,容量也为能够匹配的个数(1),其他匹配边容…