1.HDU 1532 最大流入门,n个n条边,求第1点到第m点的最大流.只用EK做了一下. #include<bits/stdc++.h> using namespace std; #pragma comment(linker, "/STACK:102400000,102400000") #define F(i,a,b) for (int i=a;i<b;i++) #define FF(i,a,b) for (int i=a;i<=b;i++) #define…

Drainage Ditches Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 12771    Accepted Submission(s): 6097 Problem Description Every time it rains on Farmer John's fields, a pond forms over Bessie's…

题目:http://acm.hdu.edu.cn/showproblem.php?pid=1532 最近在学网络流,学的还不好,先不写理解了,先放模板... 我觉得写得不错的博客:http://blog.csdn.net/smartxxyx/article/details/9293665/ #include<stdio.h> #include<string.h> #include<vector> #define maxn 222 #define inf 0x3f3f3f…

最近在换代码布局,因为发现代码布局也可以引起一个人的兴趣这个方法是算法Edmonds-Karp 最短增广路算法,不知道的话可以百度一下,基于Ford-Fulkerson算法的基础上延伸的 其实我不是很透彻的领悟这个算法的精髓,只知道怎样实现,现在的任务就是多刷几道题,见识见识题型,就可以更透彻领悟为什么这么做,之后再拐回来研究算法,这样就可以学习和实践相结合! 详解 : 就是每次广搜后都让走过的边减去这条通路的最小的通路,逆向通路加上这条通路的最小通路,也就是最大容纳量,形成新的通路之后就记录最…

#include <cstdio> #include <iostream> #include <algorithm> #include <queue> #include <cmath> #include <cstring> #include <stack> #include <set> #include <map> #include <vector> using namespace st…

pid=1532">Drainage Ditches Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 8574    Accepted Submission(s): 3991 Problem Description Every time it rains on Farmer John's fields, a pond forms…

Drainage DitchesHal Burch Time Limit 1000 ms Memory Limit 65536 kb description Every time it rains on Farmer John's fields, a pond forms over Bessie's favorite clover patch. This means that the clover is covered by water for awhile and takes quite a…

Drainage Ditches Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 53640   Accepted: 20448 Description Every time it rains on Farmer John's fields, a pond forms over Bessie's favorite clover patch. This means that the clover is covered by…

                                                                                        Drainage Ditches   Every time it rains on Farmer John's fields, a pond forms over Bessie's favorite clover patch. This means that the clover is covered by water f…

HDU - 1532 题意:有m个点,n条管道,问从1到m最大能够同时通过的水量是多少? 题解:最大流模板题. #include <iostream> #include <algorithm> #include <cstdio> #include <cstring> #include <queue> using namespace std; typedef long long ll; const int INF = 0x3ffffff; cons…