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poj 3522 Slim Span
Slim SpanTime Limit: 5000MS Memory Limit: 65536KTotal Submissions: 6381 Accepted: 3382DescriptionGiven an undirected weighted graph G, you should find one of span原创 2014-07-28 22:25:48 · 282 阅读 · 0 评论 -
poj 1338 ugly numbers
Ugly NumbersTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 20249 Accepted: 9003DescriptionUgly numbers are numbers whose only prime factors are 2, 3 or原创 2014-07-30 11:03:36 · 412 阅读 · 0 评论 -
poj2387Til the Cows Come Home(dijkstra)
Til the Cows Come HomeTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 29627 Accepted: 9964DescriptionBessie is out in the field and wants to get back to原创 2014-08-10 20:41:55 · 322 阅读 · 0 评论 -
poj3114Countries in War（强连通分量加缩点）
Countries in WarTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 2383 Accepted: 748DescriptionIn the year 2050, after different attempts of the UN to m原创 2014-08-12 11:01:43 · 375 阅读 · 0 评论 -
poj2186 Popular Cows（tarjan + 缩点）
Popular CowsTime Limit: 2000MS Memory Limit: 65536KTotal Submissions: 23312 Accepted: 9541DescriptionEvery cow's dream is to become the most popular cow in the he原创 2014-08-12 17:13:41 · 387 阅读 · 0 评论