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偶数的时候有判断吧...做一次应该就够了吧

Posted by koobi at 2005-11-11 20:34:16 on Problem 2718
In Reply To:Re:应该是数学方法,但是我WA Posted by:jaceice at 2005-11-11 20:30:52 
我前面已经有提到了吧...
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