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Description：In the age of television, not many people attend theater performances. Antique Comedians of Malidinesia are aware of this fact. They want ... 阅读全文
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Description：Arbitrage is the use of discrepancies in currency exchange rates to transform one unit of a currency into more than one unit of the same c... 阅读全文
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Description：N(1 ≤N≤ 100) cows, conveniently numbered 1..N, are participating in a programming contest. As we all know, some cows code better than othe... 阅读全文
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Description：While exploring his many farms, Farmer John has discovered a number of amazing wormholes. A wormhole is very peculiar because it is a one-... 阅读全文
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Description：Several currency exchange points are working in our city. Let us suppose that each point specializes in two particular currencies and perf... 阅读全文
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Description：Bessie is out in the field and wants to get back to the barn to get as much sleep as possible before Farmer John wakes her for the morning... 阅读全文