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Hurdles of 110m Time Limit: 2000 msMemory Limit: 65536 KB In the year 2008, the 29th Olympic Games will be held in Beijing. This will signify the pros 阅读全文
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B. Petr and a Combination Lock time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Petr has j 阅读全文
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Tokens on the Segments Time Limit: 1000 msMemory Limit: 65536 KB Consider segments on a two-dimensional plane, where the endpoints of the -th segment 阅读全文