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Re:一次随机都可以过。

Posted by frankhuhu at 2007-08-11 23:14:26 on Problem 3063
In Reply To:一次随机都可以过。 Posted by:littlejay at 2006-11-18 21:18:38 
不用随机，正规一点的方法有吗？说说看啊，谢！
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