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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 N (1 ≤ N ≤ 100) cows, conveniently numbered 1..N, are participating in a programming contest. As we all know, some cows code better than o 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