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解题思路： 之前看到的骚操作，主要思想就是把两个面合在一起看成两个点相连，最后只要找到一个环就可以无限克隆这个环使得无限延迟. 把符号变成数字如A-变为0，A+变为1，则0^1=1 ，这两个符号可以通过^来快速转换。 实现代码： 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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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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A. Kirill And The Game time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Kirill plays a ne 阅读全文
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B. Tell Your World time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output B. Tell Your World tim 阅读全文
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Catch That Cow Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 97240 Accepted: 30519 Description Farmer John has been informed of the locat 阅读全文
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LETTERS Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 8976 Accepted: 4017 Description A single-player game is played on a rectangular boa 阅读全文
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In a modernized warehouse, robots are used to fetch the goods. Careful planning is needed to ensure that the robots reach their destinations without c 阅读全文
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Let S = s1 s2...s2n be a well-formed string of parentheses. S can be encoded in two different ways: q By an integer sequence P = p1 p2...pn where pi i 阅读全文
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Accounting for Computer Machinists (ACM) has sufferred from the Y2K bug and lost some vital data for preparing annual report for MS Inc. All what they 阅读全文