Description Farmer John completed his new barn just last week, complete with all the latest milking technology. Unfortunately, due to engineering problems, all the stalls in the new barn are different. For the first week, Farmer John randomly assigne…

The Perfect Stall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 23911   Accepted: 10640 Description Farmer John completed his new barn just last week, complete with all the latest milking technology. Unfortunately, due to engineering p…

The Perfect Stall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 23911   Accepted: 10640 Description Farmer John completed his new barn just last week, complete with all the latest milking technology. Unfortunately, due to engineering p…

The Perfect Stall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 23313   Accepted: 10383 Description Farmer John completed his new barn just last week, complete with all the latest milking technology. Unfortunately, due to engineering p…

解决报告 http://blog.csdn.net/juncoder/article/details/38136193 id=1274">题目传送门 题意: n头m个机器,求最大匹配. ps 一分钟前刚做了POJ1469直接改了输入输出就交了,题意全然一样,,,sad ,代码传送门 The Perfect Stall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 18108   Accepted: 8227 Des…

The Perfect Stall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 25739   Accepted: 11444 Description Farmer John completed his new barn just last week, complete with all the latest milking technology. Unfortunately, due to engineering p…

The Perfect Stall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 17768   Accepted: 8104 Description Farmer John completed his new barn just last week, complete with all the latest milking technology. Unfortunately, due to engineering pr…

The Perfect Stall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 21665   Accepted: 9735 Description Farmer John completed his new barn just last week, complete with all the latest milking technology. Unfortunately, due to engineering pr…

主题链接: id=1274">http://poj.org/problem? id=1274 题目大意: 有N头奶牛(编号1~N)和M个牛棚(编号1~M). 每头牛仅仅可产一次奶.每一个牛棚也仅仅同意一仅仅牛产奶. 如今给出每头奶牛喜欢去的牛棚的编号.问:最多有多少头奶牛能完毕产奶. 思路: 二分图最大匹配问题,建立一个图,用行来表示奶牛,用列来表示牛棚.将奶牛和喜欢去的牛棚编号 连边. 然后用匈牙利算法DFS版或BFS版求二分图的最大匹配数就可以.这里用了匈牙利算法DFS版. AC代码:…

题目地址:http://poj.org/problem?id=1274 把每个奶牛ci向它喜欢的畜栏vi连边建图.那么求最大安排数就变成求二分图最大匹配数. #include<cstdio> #include<iostream> #include<string.h> #include<algorithm> #include<math.h> #include<stdbool.h> #include<time.h> #incl…

N头牛,M个畜栏,每头牛仅仅喜欢当中的某几个畜栏,可是一个畜栏仅仅能有一仅仅牛拥有,问最多能够有多少仅仅牛拥有畜栏. 典型的指派型问题,用二分图匹配来做,求最大二分图匹配能够用最大流算法,也能够用匈牙利算法,这里使用匈牙利算法. #include <stdlib.h> #include <stdio.h> #include <vector> #include <math.h> #include <string.h> #include <st…

The Perfect Stall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 17895   Accepted: 8143 Description Farmer John completed his new barn just last week, complete with all the latest milking technology. Unfortunately, due to engineering pr…

Luogu 1894 [USACO4.2]完美的牛栏The Perfect Stall / POJ 1274 The Perfect Stall(二分图最大匹配) Description 农夫约翰上个星期刚刚建好了他的新牛棚,他使用了最新的挤奶技术.不幸的是,由于工程问题,每个牛栏都不一样.第一个星期,农夫约翰随便地让奶牛们进入牛栏,但是问题很快地显露出来:每头奶牛都只愿意在她们喜欢的那些牛栏中产奶.上个星期,农夫约翰刚刚收集到了奶牛们的爱好的信息(每头奶牛喜欢在哪些牛栏产奶).一个牛栏只能容纳…

The Perfect Stall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 24081   Accepted: 10695 Description Farmer John completed his new barn just last week, complete with all the latest milking technology. Unfortunately, due to engineering p…

The Perfect Stall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 16396   Accepted: 7502 Description Farmer John completed his new barn just last week, complete with all the latest milking technology. Unfortunately, due to engineering pr…

二分图的最大匹配.我是用最大流求解.加个源点s和汇点t:s和每只cow.每个stall和t 连一条容量为1有向边,每只cow和stall(that the cow is willing to produce milk in )也连一条容量为1的边.然后就用ISAP. #include<cstdio> #include<cstring> #include<iostream> #include<algorithm> #include<vector>…

The Perfect Stall题解 Hal Burch Farmer John completed his new barn just last week, complete with all the latest milking technology. Unfortunately, due to engineering problems, all the stalls in the new barn are different. For the first week, Farmer Joh…

P1894 [USACO4.2]完美的牛栏The Perfect Stall 题目描述 农夫约翰上个星期刚刚建好了他的新牛棚,他使用了最新的挤奶技术.不幸的是,由于工程问题,每个牛栏都不一样.第一个星期,农夫约翰随便地让奶牛们进入牛栏,但是问题很快地显露出来:每头奶牛都只愿意在她们喜欢的那些牛栏中产奶.上个星期,农夫约翰刚刚收集到了奶牛们的爱好的信息(每头奶牛喜欢在哪些牛栏产奶).一个牛栏只能容纳一头奶牛,当然,一头奶牛只能在一个牛栏中产奶. 给出奶牛们的爱好的信息,计算最大分配方案. 输入输出…

The Perfect Stall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 26274   Accepted: 11672 Description Farmer John completed his new barn just last week, complete with all the latest milking technology. Unfortunately, due to engineering p…

The Perfect Stall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 20874   Accepted: 9421 Description Farmer John completed his new barn just last week, complete with all the latest milking technology. Unfortunately, due to engineering pr…

The Perfect StallHal Burch Farmer John completed his new barn just last week, complete with all the latest milking technology. Unfortunately, due to engineering problems, all the stalls in the new barn are different. For the first week, Farmer John r…

过山车 Time Limit: 1000 MS Memory Limit: 32768 KB 64-bit integer IO format: %I64d , %I64u Java class name: Main Description RPG girls今天和大家一起去游乐场玩,终于可以坐上梦寐以求的过山车了.可是,过山车的每一排只有两个座位,而且还有条不成文的规矩,就是每个女生必须找个个男生做partner和她同坐.但是,每个女孩都有各自的想法,举个例子把,Rabbit只愿意和XHD或P…

题目链接: http://poj.org/problem?id=3041 Description Bessie wants to navigate her spaceship through a dangerous asteroid field in the shape of an N x N grid (1 <= N <= 500). The grid contains K asteroids (1 <= K <= 10,000), which are conveniently…

poj——1274   The Perfect Stall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 25709   Accepted: 11429 Description Farmer John completed his new barn just last week, complete with all the latest milking technology. Unfortunately, due to e…

The Perfect Stall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 21868   Accepted: 9809 Description Farmer John completed his new barn just last week, complete with all the latest milking technology. Unfortunately, due to engineering pr…

P1894 [USACO4.2]完美的牛栏The Perfect Stall 题目描述 农夫约翰上个星期刚刚建好了他的新牛棚,他使用了最新的挤奶技术.不幸的是,由于工程问题,每个牛栏都不一样.第一个星期,农夫约翰随便地让奶牛们进入牛栏,但是问题很快地显露出来:每头奶牛都只愿意在她们喜欢的那些牛栏中产奶.上个星期,农夫约翰刚刚收集到了奶牛们的爱好的信息(每头奶牛喜欢在哪些牛栏产奶).一个牛栏只能容纳一头奶牛,当然,一头奶牛只能在一个牛栏中产奶. 给出奶牛们的爱好的信息,计算最大分配方案. 输入输出…

/*1A 31ms*/ #include<stdio.h> #include<string.h> #define N 300 int n; struct node { int u,v,next; }bian[N*N*2]; int color[N],vis[N],link[N],visit[N],ma[N][N],f[N],head[N],yong; void addedge(int u,int v) { bian[yong].u=u; bian[yong].v=v; bian[y…

P1894 [USACO4.2]完美的牛栏The Perfect Stall 题目描述 农夫约翰上个星期刚刚建好了他的新牛棚,他使用了最新的挤奶技术.不幸的是,由于工程问题,每个牛栏都不一样.第一个星期,农夫约翰随便地让奶牛们进入牛栏,但是问题很快地显露出来:每头奶牛都只愿意在她们喜欢的那些牛栏中产奶.上个星期,农夫约翰刚刚收集到了奶牛们的爱好的信息(每头奶牛喜欢在哪些牛栏产奶).一个牛栏只能容纳一头奶牛,当然,一头奶牛只能在一个牛栏中产奶. 给出奶牛们的爱好的信息,计算最大分配方案. 输入输出…

两题二分图匹配的题: 1.一个农民有n头牛和m个畜栏,对于每个畜栏,每头牛有不同喜好,有的想去,有的不想,对于给定的喜好表,你需要求出最大可以满足多少头牛的需求. 2.给你学生数和课程数,以及学生上的课,如果可以做到每个学生代表不同的课程并且所有的课程都被代表输出"YES"(学生能代表一门课当且仅当他上过). 1.POJ 1274 The Perfect Stall http://poj.org/problem?id=1274 和上一题过山车一样,也是二分图匹配的. 水题. #incl…

描述 农夫约翰上个星期刚刚建好了他的新牛棚,他使用了最新的挤奶技术.不幸的是,由于工程问题,每个牛栏都不一样.第一个星期,农夫约翰随便地让奶牛们进入牛栏,但是问题很快地显露出来:每头奶牛都只愿意在她们喜欢的那些牛栏中产奶.上个星期,农夫约翰刚刚收集到了奶牛们的爱好的信息(每头奶牛喜欢在哪些牛栏产奶).一个牛栏只能容纳一头奶牛,当然,一头奶牛只能在一个牛栏中产奶. 给出奶牛们的爱好的信息,计算最大分配方案. 格式 PROGRAM NAME: stall4 INPUT FORMAT: (file s…