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Re:直接brute force就可以?

Posted by uni at 2005-04-23 14:30:28 on Problem 2407
In Reply To:直接brute force就可以? Posted by:frkstyc at 2005-04-23 14:28:56
恩,当然得开个平方了.
我是用质数算的.只考虑质数,

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