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Description Suppose that the fourth generation mobile phone base stations in the Tampere area operate as follows. The area is divided into squares. Th 阅读全文
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Description In this problem, you have to analyze a particular sorting algorithm. The algorithm processes a sequence of n distinct integers by swapping 阅读全文
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Description 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 阅读全文
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Problem Description Astronomers often examine star maps where stars are represented by points on a plane and each star has Cartesian coordinates. Let 阅读全文
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题目描述 Description 给你N个数，有两种操作： 1：给区间[a,b]的所有数增加X 2：询问区间[a,b]的数的和。 题目描述 Description 给你N个数，有两种操作： 1：给区间[a,b]的所有数增加X 2：询问区间[a,b]的数的和。 给你N个数，有两种操作： 1：给区间[a 阅读全文