不说别的,直接上模板. Dinic+当前弧优化: struct Edge{ int x,y,c,ne; }e[M*]; int be[N],all; int d[N],q[N]; int stack[N],top;//栈存的是边 int cur[N];//当前弧优化 void add(int x, int y, int z)//需保证相反边第一个为偶数 { e[all].x=x; e[all].y=y; e[all].c=z; e[all].ne=be[x]; be[x]=all++; e[al…

Dual Core CPU Time Limit: 15000MS   Memory Limit: 131072K Total Submissions: 24830   Accepted: 10756 Case Time Limit: 5000MS Description As more and more computers are equipped with dual core CPU, SetagLilb, the Chief Technology Officer of TinySoft C…

链接: http://acm.hdu.edu.cn/showproblem.php?pid=4289 http://acm.hust.edu.cn/vjudge/contest/view.action?cid=82835#problem/I 题意:有N个城市,现在城市S出现了一伙歹徒,他们想运送一些炸弹到D城市,不过警方已经得到了线报知道他们的事情,不过警察不知道他们所在的具体位置,所以只能采取封锁城市的办法来阻断暴徒,不过封锁城市是需要花费一定代价的,由于警局资金比较紧张,所以想知道如果完全阻…

//最短增广路,Dinic算法 struct Edge { int from,to,cap,flow; };//弧度 void AddEdge(int from,int to,int cap) //增弧 { edges.push_back((Edge){}); edges.push_back((Edge){to,,}); m=edges.size(); G[); G[to].push_back(m-); } struct Dinic{ int n,m,s,t; vector<Edge> edg…

#include<stdio.h> #include<string.h> #define N 300 #define inf 0x7fffffff #include<queue> using namespace std; struct node {   int u,v,w,next; }bian[N*4]; int head[N],yong,d[N],s,t; void addedge(int u,int v,int w) {    bian[yong].u=u;  …

#define IOS ios_base::sync_with_stdio(0); cin.tie(0); #include <cstdio>//sprintf islower isupper #include <cstdlib>//malloc exit strcat itoa system("cls") #include <iostream>//pair #include <fstream>//freopen("C:\\Us…

program rrr(input,output); const inf=; type pointer=^nodetype; nodetype=record t,c:longint; next,rev:pointer; end; var a,cur:..]of pointer; d,q:..]of longint; p:pointer; i,n,m,s,t,c,x,y,ans:longint; function min(a,b:longint):longint; begin if a<b the…

Drainage Ditches Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 45 Accepted Submission(s): 38   Problem Description Every time it rains on Farmer John's fields, a pond forms over Bessie's favorit…

给你岛的坐标求最西边到最东边的最大流 /* 最大流模板 sap */ #include<stdio.h> #include<string.h> #include<algorithm> #include<iostream> using namespace std; ;//点数的最大值 ;//边数的最大值 const int INF=0x3f3f3f3f; struct Node { int from,to,next; int cap; }G[MAXM]; in…

妖怪题目,做到现在:2017/8/19 - 1:41…… 不过想想还是值得的,至少邻接矩阵型的Dinic算法模板get√ 题目链接:http://poj.org/problem?id=1815 Time Limit: 2000MS Memory Limit: 20000K Description In modern society, each person has his own friends. Since all the people are very busy, they communic…