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A Communist regime is trying to redistribute wealth in a village. They have have decided to sit everyone around a circular table. First, everyone has ... 阅读全文
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Once upon a time, in the Kingdom of Loowater, a minor nuisance turned into a major problem. The shores of Rellau Creek in central Loowater ha... 阅读全文
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An architect wants to design a very high building. The building will consist of some floors, and each floor has a certain size. The size of a floo... 阅读全文
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When you first made the computer to print the sentence “Hello World!”, you felt so happy, not knowing how complex and interesting the world of program... 阅读全文
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Mohammad has recently visited Switzerland. As he loves his friends very much, he decided to buy some chocolate for them, but as this fine chocolat... 阅读全文
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You have devised a new encryption technique which encodes a message by inserting between its characters randomly generated strings in a clever way.... 阅读全文
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DescriptionLittle Lesha loves listening to music via his smartphone. But the smartphone doesn't have much memory, so Lesha listens to his favorite son... 阅读全文
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Descriptionnparticipants of the competition were split intomteams in some manner so that each team has at least one participant. After the competition... 阅读全文
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DescriptionTomorrow is contest day, Are you all ready?We have been training for 45 days, and all guys must be tired.But , you are so lucky comparing w... 阅读全文
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DescriptionGerald got a very curious hexagon for his birthday. The boy found out that all the angles of the hexagon are equal to. Then he measured the... 阅读全文