分析:将行和列缩点,即行对应二分图的X部,列对应二分图的Y部,然后交点为连接该行和该列的一条边.匹配时每点都会把整行整列占了,因此就不会出现冲突了. 传送门:hdu1281 棋盘游戏 #include <cstdio> #include <cstring> #include <string> #include <cmath> #include <iostream> #include <algorithm> #include <q…

题目链接:https://vjudge.net/problem/HDU-2819 Swap Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4003    Accepted Submission(s): 1478Special Judge Problem Description Given an N*N matrix with each…

Swap Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 5728    Accepted Submission(s): 2157Special Judge Problem Description Given an N*N matrix with each entry equal to 0 or 1. You can swap any t…

SwapTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3102 Accepted Submission(s): 1117Special Judge Problem DescriptionGiven an N*N matrix with each entry equal to 0 or 1. You can swap any two rows…

Given an N*N matrix with each entry equal to 0 or 1. You can swap any two rows or any two columns. Can you find a way to make all the diagonal entries equal to 1? InputThere are several test cases in the input. The first line of each test case is an…

Swap Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 3371    Accepted Submission(s): 1235 Special Judge Problem Description Given an N*N matrix with each entry equal to 0 or 1. You can swap any…

Swap Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3800    Accepted Submission(s): 1401Special Judge Problem Description Given an N*N matrix with each entry equal to 0 or 1. You can swap any t…

Swap Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4932    Accepted Submission(s): 1836Special Judge 题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2819 Description: Given an N*N matrix with e…

Swap Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1800    Accepted Submission(s): 606Special Judge Problem Description Given an N*N matrix with each entry equal to 0 or 1. You can swap any tw…

Swap Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2236    Accepted Submission(s): 801Special Judge Problem Description Given an N*N matrix with each entry equal to 0 or 1. You can swap any tw…