POJ 1990 MooFest
摘要:Description Every year, Farmer John's N (1 <= N <= 20,000) cows attend "MooFest",a social gathering of cows from around the world. MooFest involves a
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poj 2481
摘要:Language: Default Cows Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 21941 Accepted: 7419 Description Farmer John's cows have discovered
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poj 3928 Ping pong
摘要:Ping pong Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 4260 Accepted: 1407 Description N(3<=N<=20000) ping pong players live along a wes
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BZOJ 1878: [SDOI2009]HH的项链
摘要:Description HH有一串由各种漂亮的贝壳组成的项链。HH相信不同的贝壳会带来好运,所以每次散步 完后,他都会随意取出一段贝壳,思考它们所表达的含义。HH不断地收集新的贝壳,因此, 他的项链变得越来越长。有一天,他突然提出了一个问题:某一段贝壳中,包含了多少种不同 的贝壳?这个问题很难回答。
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