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…

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…

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…

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…

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…

嗯... 题目链接:http://poj.org/problem?id=1274 一道很经典的匈牙利算法的题目: 将每只奶牛看成二分图中左边的点,将牛圈看成二分图中右边的点,如果奶牛看上某个牛圈,就将两点之间连边,然后跑一边匈牙利就行了... AC代码: #include<cstdio> #include<iostream> #include<cstring> using namespace std; ], g[][], vis[]; inline int dfs(in…

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: 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: 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…

[题目链接] http://poj.org/problem?id=1274 [题目大意] 给出一些奶牛和他们喜欢的草棚,一个草棚只能待一只奶牛, 问最多可以满足几头奶牛 [题解] 奶牛和喜欢的草棚连线,做二分图匹配即可 [代码] #include <cstdio> #include <algorithm> #include <cstring> #include <vector> using namespace std; const int MAX_V=100…