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搜索关键字:dining cows    ( 1679个结果
BZOJ1680: [Usaco2005 Mar]Yogurt factory
1680: [Usaco2005 Mar]Yogurt factoryTime Limit:5 SecMemory Limit:64 MBSubmit:106Solved:74[Submit][Status][Discuss]DescriptionThe cows have purchased a ...
分类:其他好文   时间:2014-09-21 13:25:50    阅读次数:238
BZOJ1653: [Usaco2006 Feb]Backward Digit Sums
1653: [Usaco2006 Feb]Backward Digit SumsTime Limit:5 SecMemory Limit:64 MBSubmit:207Solved:161[Submit][Status][Discuss]DescriptionFJ and his cows enjo...
分类:其他好文   时间:2014-09-20 21:31:29    阅读次数:223
[ACM] POJ 3258 River Hopscotch (二分,最大化最小值)
River HopscotchTime Limit:2000MSMemory Limit:65536KTotal Submissions:6697Accepted:2893DescriptionEvery year the cows hold an event featuring a peculia...
分类:其他好文   时间:2014-09-19 21:02:56    阅读次数:263
poj 3176 -- Cow Bowling
Cow BowlingTime Limit:1000MSMemory Limit:65536KTotal Submissions:13931Accepted:9230DescriptionThe cows don't use actual bowling balls when they go bow...
分类:其他好文   时间:2014-09-19 11:25:15    阅读次数:196
POJ 1990 MooFest
MooFest Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 5339   Accepted: 2300 Description Every year, Farmer John's N (1 <= N <= 20,000) cows attend "MooFest...
分类:其他好文   时间:2014-09-18 22:22:44    阅读次数:316
POJ 2376 Cleaning Shifts(贪心)
Description Farmer John is assigning some of his N (1 <= N <= 25,000) cows to do some cleaning chores around the barn. He always wants to have one cow working on cleaning things up and has divided ...
分类:其他好文   时间:2014-09-18 14:53:14    阅读次数:213
poj3274--Gold Balanced Lineup(hash)
Gold Balanced Lineup Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 12334   Accepted: 3618 Description Farmer John's N cows (1 ≤ N ≤ 100,000) share many sim...
分类:其他好文   时间:2014-09-16 22:15:41    阅读次数:329
POJ2186 Popular Cows ,有向图, Tarjan算法
题意: 给定一个有向图,求有多少个顶点是由任何顶点出发都可达的。 顶点数 定理: 有向无环图中唯一出度为0的点,一定可以由任何点出发均可达 (由于无环,所以从任何点出发往前走,必然终止于一个出度为0的点) 1. 求出所有强连通分量 2. 每个强连通分量缩成一点,则形成一个有向无环图DAG。 3. DAG上面如果有唯一的出度为0的点,则该点能被所有的点可达。那么该...
分类:其他好文   时间:2014-09-15 21:19:19    阅读次数:253
poj1947 Rebuilding Roads
Rebuilding RoadsTime Limit:1000MSMemory Limit:30000KTotal Submissions:9105Accepted:4122DescriptionThe cows have reconstructed Farmer John's farm, with...
分类:其他好文   时间:2014-09-15 21:13:09    阅读次数:231
poj3281 Dining 最大流(奇妙的构图)
我是按照图论500题的文档来刷题的,看了这题怎么也不觉得这是最大流的题目。这应该是题目做得太少的缘故。 什么是最大流问题?最大流有什么特点? 最大流的特点我觉得有一下几点: 1、只有一个起点、一个终点。如果不是,我们可以构造超级源点,超级汇点。 2、边的容量有上限(有上下限的是另...
分类:其他好文   时间:2014-09-13 21:24:05    阅读次数:369
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