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看题不仔细。。。差一点搞AOE了

Posted by kaitian5201314 at 2010-12-31 16:29:55 on Problem 1949
In Reply To: Farmer John's list of chores is nicely ordered, and chore K (K > 1) can have only chores 1,.K-1 as prerequisites Posted by:xiaolonghingis at 2006-08-08 16:21:47


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