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Problem Description:You are given a number of case-sensitive strings of alphabetic characters, find the largest string X, such that either X, or its i... 阅读全文
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Description：For an upcoming programming contest, Edward, the headmaster of Marjar University, is forming a two-man team fromNstudents of his universit... 阅读全文
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Description:A power network consists of nodes (power stations, consumers and dispatchers) connected by power transport lines. A node u may be supplied... 阅读全文
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Description:A subsequence of a given sequence is the given sequence with some elements (possible none) left out. Given a sequence X = another sequenc... 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 aj.For a given sequence of... 阅读全文
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Description：As you know, all the computers used for ACM contests must be identical, so the participants compete on equal terms. That is why all these ... 阅读全文
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10480 Sabotage:The regime of a small but wealthy dictatorship has been abruptly overthrown by an unexpected rebellion.Because of the enormous disturba... 阅读全文
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Problem Description：A group of researchers are designing an experiment to test the IQ of a monkey. They will hang a banana at the roof of a building, ... 阅读全文
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Description：The Borg is an immensely powerful race of enhanced humanoids from the delta quadrant of the galaxy. The Borg collective is the term used t... 阅读全文
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Description：The Global Aerial Research Centre has been allotted the task of building the fifth generation of mobile phone nets in Sweden. The most str... 阅读全文