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…

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…

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…

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…

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:…

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…

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…

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: 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…