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Japan plans to welcome the ACM ICPC World Finals and a lot of roads must be built for the venue. Japan is tall island with N cities on the East coast ... 阅读全文
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There are N integers (1A[j].InputThe first line of the input contains the number N. The second line contains N numbers A1...AN.OutputWrite amount of s... 阅读全文
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In this problem, you have to analyze a particular sorting algorithm. The algorithm processes a sequence of n distinct integers by swapping two adjacen... 阅读全文
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Suppose that the fourth generation mobile phone base stations in the Tampere area operate as follows. The area is divided into squares. The squares fo... 阅读全文
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Astronomers often examine star maps where stars are represented by points on a plane and each star has Cartesian coordinates. Let the level of a star ... 阅读全文
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C国的死对头A国这段时间正在进行军事演习，所以C国间谍头子Derek和他手下Tidy又开始忙乎了。A国在海岸线沿直线布置了N个工兵营地,Derek和Tidy的任务就是要监视这些工兵营地的活动情况。由于采取了某种先进的监测手段，所以每个工兵营地的人数C国都掌握的一清二楚,每个工兵营地的人数都有可能发生... 阅读全文