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POJ - 3281 Dining (ISAP EK Dinic)
题目大意:有N头牛,F种食物,D种饮料,每种食物和饮料都只有一 现在给出每头牛所喜爱的食物和饮料,问最多有多少头牛能同时得到自己喜欢的食物和饮料解题思路:将牛拆成两点,权值为1,一条和喜欢的食物相连,权值为1,另一条和喜欢的饮料相连,权值为1 然后将所有食物和超级源点相连,权值为1 将所有的饮料喝超级汇点相连,权值为1ISAP#include #include <cstrin...
分类:其他好文   时间:2015-08-03 01:18:05    阅读次数:179
POJ3667——线段树区间合并(未搞透)——Hotel
The cows are journeying north to Thunder Bay in Canada to gain cultural enrichment and enjoy a vacation on the sunny shores of Lake Superior. Bessie, ...
分类:其他好文   时间:2015-08-02 23:05:11    阅读次数:159
hdu 4292 Food (最大流)
hdu 4292 FoodDescription   You, a part-time dining service worker in your college’s dining hall, are now confused with a new problem: serve as many people as possible.   The issue comes up as people...
分类:其他好文   时间:2015-08-02 21:40:19    阅读次数:220
【斜率优化】HDU 3045 Picnic Cows
通道题意:有n个奶牛分别有对应的兴趣值,现在对奶牛分组,每组成员不少于t,在每组中所有的成员兴趣值要减少到一致,求总共最少需要减少的兴趣值是多少
分类:其他好文   时间:2015-08-02 15:07:43    阅读次数:97
POJ3258——二分——River Hopscotch
Every year the cows hold an event featuring a peculiar version of hopscotch that involves carefully jumping from rock to rock in a river. The exciteme...
分类:其他好文   时间:2015-08-01 15:42:09    阅读次数:132
POJ 3258 River Hopscotch
Time Limit:2000MSMemory Limit:65536KB64bit IO Format:%I64d & %I64uSubmitStatusPracticePOJ 3258DescriptionEvery year the cows hold an event featuring a...
分类:其他好文   时间:2015-08-01 11:17:55    阅读次数:135
HDU 3045 DP 斜率优化 Picnic Cows
题意:将n个数分成若干组,每组数字的个数不少于t个,要把每组的数字减小到这组最小值,求所有数字减少的最小值。先将这n个数从小到大排个序,可以想到一组里面的数一定是排序后相邻的。设d(i)表示前i个数分完组以后减少的最小值,考虑j~i为一组,则有状态转移方程还是一样的处理方法,设k 2 #inclu....
分类:其他好文   时间:2015-08-01 10:01:01    阅读次数:140
poj 3660 Cow Contest(warshall算法)
poj 3660 Cow ContestDescriptionN (1 ≤ N ≤ 100) cows, conveniently numbered 1..N, are participating in a programming contest. As we all know, some cows code better than others. Each cow has a certain co...
分类:编程语言   时间:2015-07-31 21:56:13    阅读次数:136
poj 3281 Dining(最大流)
poj 3281 DiningDescriptionCows are such finicky eaters. Each cow has a preference for certain foods and drinks, and she will consume no others.Farmer John has cooked fabulous meals for his cows, but he...
分类:其他好文   时间:2015-07-26 22:45:48    阅读次数:142
BZOJ 3314: [Usaco2013 Nov]Crowded Cows( 单调队列 )
从左到右扫一遍, 维护一个单调不递减队列. 然后再从右往左重复一遍然后就可以统计答案了。----------------------------------------------------------------------------#include#define rep(i, n) for(...
分类:其他好文   时间:2015-07-26 20:45:47    阅读次数:161
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