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Description In the game of DotA, Pudge’s meat hook is actually the most horrible thing for most of the heroes. The hook is made up of several consecut 阅读全文
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Description The inversion number of a given number sequence a1, a2, ..., an is the number of pairs (ai, aj) that satisfy i < j and ai > aj. For a give 阅读全文
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Description In China, there are two companies offering the Internet service for the people from all cities: China Telecom and China Unicom. They both 阅读全文
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Time limit 2000 ms Memory limit 65536 kB DescriptionFarmer John knows that an intellectually satisfied cow is a happy cow who w... 阅读全文
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Time limit 1000 ms Memory limit 65536 kB DescriptionYou are trapped in a 3D dungeon and need to find the quickest way out! The ... 阅读全文
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Time limit 1000 ms Memory limit 10000 kB Description在一个给定形状的棋盘（形状可能是不规则的）上面摆放棋子，棋子没有区别。要求摆放时任意的两个棋子不能放在棋盘中的同一行或者同一列，请编程求解对于给定形状和... 阅读全文
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Time limit 1000 ms Memory limit 30000 kB descriptionCharlie is a driver of Advanced Cargo Movement, Ltd. Charlie driv... 阅读全文
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Time limit 3000 ms Memory limit 30000 kB DescriptionPeople in Silverland use coins.They have coins of value A1,A2,A3...An Silve... 阅读全文