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Re:其实很简单啦~

Posted by rain_bow at 2009-04-09 21:47:48 on Problem 1401
In Reply To:其实很简单啦~ Posted by:liqi5277 at 2008-05-24 00:02:36
真强...
其实是看n能被5分成多少分就有几个5(1),再看有几个25,再看有几个125.........

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