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Digit Counting UVA - 1225 Trung is bored with his mathematics homeworks. He takes a piece of chalk and starts writing a sequence of consecutive intege 阅读全文
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Box UVA - 1587 Ivan works at a factory that produces heavy machinery. He has a simple job — he knocks up wooden boxes of different sizes to pack machin 阅读全文
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All in All UVA - 10340 You have devised a new encryption technique which encodes a message by inserting between its characters randomly generated stri 阅读全文
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Periodic Strings UVA - 455 A character string is said to have period k if it can be formed by concatenating one or more repetitions of another string 阅读全文
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Molar mass UVA - 1586 An organic compound is any member of a large class of chemical compounds whose molecules contain carbon. The molar mass of an or 阅读全文