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Description Polycarpus is an amateur businessman. Recently he was surprised to find out that the market for paper scissors is completely free! Without 阅读全文
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Description Given a positive integer N, you should output the most right digit of N^N. Description Given a positive integer N, you should output the m 阅读全文
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Description Bacon's cipher or the Baconian cipher is a method of steganography (a method of hiding a secret message as opposed to a true cipher) devis 阅读全文