九野的博客,转载请注明出处 :http://blog.csdn.net/acmmmm/article/details/11221561 题意:T个测试数据 下面n,m表示n个点m条有向带权边 m条边 问:从1-n最大流多少 测板子的题目,没啥思路 下面用的是dinic,开始没有考虑反向弧debug了好久,附赠一大坨测试数据 #include <iostream> #include <string> #include <cstring> #include <algo…

网络流 HDU 3549 Flow Problem 题目:pid=3549">http://acm.hdu.edu.cn/showproblem.php?pid=3549 用增广路算法进行求解.注意的问题有两个: 1. 每次增广的时候,反向流量也要进行更行.一開始没注意,WA了几次 ORZ 2. 对于输入的数据,容量要进行累加更新. // 邻接矩阵存储 #include <bits/stdc++.h> using namespace std; const int INF = 0…

HDU 3549 Flow Problem(最大流) Time Limit: 5000/5000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) [Description] [题目描述] Network flow is a well-known difficult problem for ACMers. Given a graph, your task is to find out the maximum flow for t…

题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=3549 Flow Problem Description Network flow is a well-known difficult problem for ACMers. Given a graph, your task is to find out the maximum flow for the weighted directed graph. Input The first line of…

题目:http://acm.hdu.edu.cn/showproblem.php?pid=3549 Flow Problem Time Limit: 5000/5000 MS (Java/Others)    Memory Limit: 65535/32768 K (Java/Others) Total Submission(s): 5111    Accepted Submission(s): 2385 Problem Description Network flow is a well-kn…

Flow Problem Time Limit: 5000/5000 MS (Java/Others)    Memory Limit: 65535/32768 K (Java/Others) Total Submission(s): 15345    Accepted Submission(s): 7234 Problem Description Network flow is a well-known difficult problem for ACMers. Given a graph,…

Flow Problem 题意:N个顶点M条边,(2 <= N <= 15, 0 <= M <= 1000)问从1到N的最大流量为多少? 分析:直接使用Edmonds_Karp算法即可:下面是对增广路的一些理解和代码的解释: 残量:容量-流量: 增广:求出从源点到汇点的一条道路中所有残量的最小值d,把对应的所有边上的流量增加d,反向边(t->s)流量减少d(反向边的cap其实一直是0,只是flow为负了); 技巧:这次的ins的标号是从0开始的,即tot++,之前我都是++t…

Flow Problem Time Limit: 5000/5000 MS (Java/Others)    Memory Limit: 65535/32768 K (Java/Others)Total Submission(s): 6674    Accepted Submission(s): 3112 Problem Description Network flow is a well-known difficult problem for ACMers. Given a graph, yo…

Flow Problem Time Limit: 5000/5000 MS (Java/Others)    Memory Limit: 65535/32768 K (Java/Others)Total Submission(s): 8199    Accepted Submission(s): 3814 Problem Description Network flow is a well-known difficult problem for ACMers. Given a graph, yo…

Flow ProblemTime Limit: 5000/5000 MS (Java/Others)    Memory Limit: 65535/32768 K (Java/Others)Total Submission(s): 21438    Accepted Submission(s): 10081 Problem DescriptionNetwork flow is a well-known difficult problem for ACMers. Given a graph, yo…