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Problem D: Headmaster's HeadacheTime limit: 2 secondsThe headmaster of Spring Field School is considering employing some new teachers for certain subj... 阅读全文
posted @ 2014-05-12 21:31
hyx1
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Bob enjoys playing computer games, especially strategic games, but sometimes he cannot find the solution fast enough and then he is very sad. Now he h... 阅读全文
posted @ 2014-05-12 19:19
hyx1
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Integers1, 2, 3,...,nare placed on a circle in the increasing order as in the following figure. We want to construct a sequence from these numbers on ... 阅读全文
posted @ 2014-05-12 17:52
hyx1
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