Farm Tour Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 17230 Accepted: 6647 Description When FJ's friends visit him on the farm, he likes to show them around. His farm comprises N (1 <= N <= 1000) fields numbered 1..N, the first of…
Farm Tour Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 18150 Accepted: 7023 Description When FJ's friends visit him on the farm, he likes to show them around. His farm comprises N (1 <= N <= 1000) fields numbered 1..N, the first of…
题目链接:http://poj.org/problem?id=2135 Farm Tour Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 17672 Accepted: 6851 Description When FJ's friends visit him on the farm, he likes to show them around. His farm comprises N (1 <= N <= 1000…
描述 When FJ's friends visit him on the farm, he likes to show them around. His farm comprises N (1 <= N <= 1000) fields numbered 1..N, the first of which contains his house and the Nth of which contains the big barn. A total M (1 <= M <= 10000)…
inf开太小错了好久--下次还是要用0x7fffffff #include<stdio.h> #include<string.h> #include<vector> #include<queue> #include<algorithm> using namespace std; const int N=5024; const int inf=0x7fffffff; struct Edge { int from,to,cap,flow,cost;…
POJ 2135 Farm Tour (网络流,最小费用最大流) Description When FJ's friends visit him on the farm, he likes to show them around. His farm comprises N (1 <= N <= 1000) fields numbered 1..N, the first of which contains his house and the Nth of which contains the b…
Farm Tour Time Limit: 1000ms Memory Limit: 65536KB This problem will be judged on PKU. Original ID: 2135 64-bit integer IO format: %lld Java class name: Main When FJ's friends visit him on the farm, he likes to show them around. His farm compr…
图论算法-最小费用最大流模板[EK;Dinic] EK模板 const int inf=1000000000; int n,m,s,t; struct node{int v,w,c;}; vector<node> map[10010]; int flow[10010][10010]; bool inq[10010]; int d[10010]; int pre[10010],pref[10010]; int minc,maxf; int main() { cin>>n>>…
Matrix Again Time Limit: 5000/2000 MS (Java/Others) Memory Limit: 102400/102400 K (Java/Others)Total Submission(s): 4255 Accepted Submission(s): 1233 Problem Description Starvae very like play a number game in the n*n Matrix. A positive integer…
Description When FJ's friends visit him on the farm, he likes to show them around. His farm comprises N (1 <= N <= 1000) fields numbered 1..N, the first of which contains his house and the Nth of which contains the big barn. A total M (1 <= M <…
Evacuation Plan Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 4914 Accepted: 1284 Special Judge Description The City has a number of municipal buildings and a number of fallout shelters that were build specially to hide municipal w…
题目链接:http://acm.nyist.net/JudgeOnline/problem.php?pid=693 题意:有一个 k 核的处理器和 n 个工作,全部的工作都须要在一个核上处理一个单位的时间,每一个核在不同一时候间处理同一个工作的花费是递增的,每一个核一次仅仅能处理一个工作,求运用k个核处理这n个工作的最小花费. 分析: 分析可知,求处理全部工作的最小花费,而每次选择怎么处理我们能够通过容量都为1的边来让网络流处理,这样就转化为最小费用最大流. 首先设一个超级源点s,连接全部的工作…
题目链接:https://www.nowcoder.com/acm/contest/143/E 时间限制:C/C++ 1秒,其他语言2秒 空间限制:C/C++ 262144K,其他语言524288K 64bit IO Format: %lld 题目描述 Nowcoder University has 4n students and n dormitories ( Four students per dormitory). Students numbered from 1 to 4n. And i…
