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给打表还超时的兄弟

Posted by go4fun at 2009-04-22 22:35:12 on Problem 2262 
注意，别被题意误导了，所谓求得b-a差最大的一对数，实际上就是你从最小的奇素数开始往上找时第一次找到的符合条件的那对数。找到后就别再找了。省时间。一开始因为没仔细看，觉得这种水题有啥难的，结果贡献了tle。注意就一次AC了！
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