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状态压缩. 每一个人所需的物品对应一个数字,统计一个每个数字有几个.每一种提供物品的状态也对应一个数字,然后暴力判断. #include<cstdio> #include<cstring> #include<algorithm> using namespace std; ; int n, m, k; int tot[maxn]; int ans; ], y; int main() { while (~scanf("%d%d%d", &n, &…
As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities connected by some roads. Amount of rescue teams in each city and the length of each road between any pair of cities are…
Emergency Time Limit: 1000ms   Memory limit: 65536K  有疑问?点这里^_^ 题目描述 Kudo’s real name is not Kudo. Her name is Kudryavka Anatolyevna Strugatskia, and Kudo is only her nickname.Now, she is facing an emergency in her hometown:Her mother is developing a…
1017 - Exact cover 时间限制:15秒 内存限制:128兆 自定评测 5584 次提交 2975 次通过 题目描述 There is an N*M matrix with only 0s and 1s, (1 <= N,M <= 1000). An exact cover is a selection of rows such that every column has a 1 in exactly one of the selected rows. Try to find o…
As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities connected by some roads. Amount of rescue teams in each city and the length of each road between any pair of cities are…
#HUST deb http://mirrors.hust.edu.cn/ubuntu/ xenial main restricted universe multiverse deb http://mirrors.hust.edu.cn/ubuntu/ xenial-security main restricted universe multiverse deb http://mirrors.hust.edu.cn/ubuntu/ xenial-updates main restricted u…
1017 - Exact cover Problem's Link:   http://acm.hust.edu.cn/problem/show/1017 Mean: 给定一个由0-1组成的矩阵,是否能找到一个行的集合,使得集合中每一列都恰好包含一个1 analyse: 初学DLX. 这是DLX处理的最简单的问题,也是模板题. Time complexity: O(n*d) Source code:  #include <stdio.h> #include <string.h> #…
1003. Emergency (25) 时间限制 400 ms 内存限制 65536 kB 代码长度限制 16000 B 判题程序 Standard 作者 CHEN, Yue As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities connected by some roads. Amount…
采用c3p0连接池,每次调试程序,第一次访问时(Tomcat服务器重启后再访问)都会出现以下错误,然后连接库需要很长时间,最终是可以连上的,之后再访问就没问题了,请高手们会诊一下,希望能帮小弟解决此问题,不胜感激! 2009-9-27 13:32:26 com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector run警告: com.mchange.v2.async.ThreadPoolAsynchronousRunner…
1003. Emergency (25) As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities connected by some roads. Amount of rescue teams in each city and the length of each road between an…