Jamie's Contact Groups Time Limit: 15000/7000 MS (Java/Others) Memory Limit: 65535/65535 K (Java/Others)Total Submission(s): 747 Accepted Submission(s): 303 Problem Description Jamie is a very popular girl and has quite a lot of friends, so she…
Jamie's Contact Groups Time Limit: 15000/7000 MS (Java/Others) Memory Limit: 65535/65535 K (Java/Others)Total Submission(s): 552 Accepted Submission(s): 190 Problem Description Jamie is a very popular girl and has quite a lot of friends, so she…
Escape Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 8747 Accepted Submission(s): 2026 Problem Description 2012 If this is the end of the world how to do? I do not know how. But now scienti…
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1669 思路:由于要求minimize the size of the largest group,由此我们想到二分枚举,然后每一次求一下多重匹配就可以了. #include<iostream> #include<cstdio> #include<cstring> #include<algorithm> #include<vector> using n…
Escape Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 13005 Accepted Submission(s): 3258 Problem Description 2012 If this is the end of the world how to do? I do not know how. But now scient…
Escape Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 10382 Accepted Submission(s): 2485 Problem Description 2012 If this is the end of the world how to do? I do not know how. But now scient…
二分匹配:二分图的一些性质 二分图又称作二部图,是图论中的一种特殊模型. 设G=(V,E)是一个无向图,如果顶点V可分割为两个互不相交的子集(A,B),并且图中的每条边(i,j)所关联的两个顶点i和j分别属于这两个不同的顶点集(i in A,j in B),则称图G为一个二分图. 1.一个二分图中的最大匹配数等于这个图中的最小点覆盖数 König定理是一个二分图中很重要的定理,它的意思是,一个二分图中的最大匹配数等于这个图中的最小点覆盖数.如果你还不知道什么是最小点覆盖,我也在这里说一下:假如选…
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=3605 Escape Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 10349 Accepted Submission(s): 2476 Problem Description 2012 If this is the end of t…
