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posted @ 2009-08-01 18:27
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posted @ 2009-08-01 18:22
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posted @ 2009-07-31 23:12
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posted @ 2009-07-31 23:10
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Greedy Gift GiversA group of NP (2 ≤ NP ≤ 10) uniquely named friends has decided to exchange gifts of money. Each of these friends might or might not give some money to any or all of the o... 阅读全文
posted @ 2009-07-31 16:20
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Programming Contest Problem Types Hal Burch conducted an analysis over spring break of 1999 and made an amazing discovery: there are only 16 types of programming contest problems! Furthermore, the top... 阅读全文
posted @ 2009-07-31 16:12
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Your Ride Is HereIt is a well-known fact that behind every good comet is a UFO. These UFOs often come to collect loyal supporters from here on Earth. Unfortunately, they only have room to pick up one ... 阅读全文
posted @ 2009-07-30 18:17
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