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同dfs过了，感觉N实际应该没有100

Posted by xuhaoran_contest_ID at 2011-07-25 10:57:38 on Problem 3333
In Reply To:这个题正确的做法是直接dfs吗？ Posted by:Felicia at 2008-09-15 11:32:46 
> 我直接dfs过了，是数据水了吗？
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