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读书时不仔细,只翻了前一页,到了J(2^m+l.....那里就如获至宝,辛辛苦苦推出一个2^n-1,赛完以后往后翻了一页,答案赫然纸上

Posted by zhao0057 at 2006-09-01 01:43:40 on Problem 2984
In Reply To:系一本书 Posted by:frkstyc at 2006-08-31 20:27:13


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