Air Raid Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 6763   Accepted: 4034 Description Consider a town where all the streets are one-way and each street leads from one intersection to another. It is also known that starting from an i…

Air Raid Language:Default Air Raid Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 9547 Accepted: 5696 Description Consider a town where all the streets are one-way and each street leads from one intersection to another. It is also known t…

http://poj.org/problem?id=1422 题目大意:n个点m条有向边,每条边只能走一次,往点上放人让他们走遍所有边,问至少要多少人. —————————————————————— 网上的题解都蛮详尽的了所以不想写这篇博客. (但是强迫症) 首先这是一道最小路径覆盖问题,有结论转换成求|节点数-最大匹配|,证明看这个人的博客. 我们将每个点拆分成两个点(设左点和右点),左点为一个集合,右点为一个集合. 这样的话两个点ij中间的有向边就是i左点连j右点. #include<cst…

Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 8006   Accepted: 4803 Description Consider a town where all the streets are one-way and each street leads from one intersection to another. It is also known that starting from an intersecti…

Air Raid Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 7511   Accepted: 4471 Description Consider a town where all the streets are one-way and each street leads from one intersection to another. It is also known that starting from an i…

Air Raid Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 6528    Accepted Submission(s): 4330 题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1151 Description: Consider a town where all the stree…

题目链接:https://vjudge.net/problem/HDU-1151 Air Raid Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 5630    Accepted Submission(s): 3785 Problem Description Consider a town where all the streets a…

Air RaidTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 4974 Accepted Submission(s): 3347 Problem DescriptionConsider a town where all the streets are one-way and each street leads from one interse…

欢迎参加——BestCoder周年纪念赛(高质量题目+多重奖励) Air Raid Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 3841    Accepted Submission(s): 2536 Problem Description Consider a town where all the streets are one-w…

Air Raid Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 4591    Accepted Submission(s): 3072 Problem Description Consider a town where all the streets are one-way and each street leads from one…