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Posted by gyarenas at 2011-11-24 18:19:11 on Problem 1062 and last updated at 2011-11-24 18:19:48
In Reply To:果断dfs吧，spfa不好做,wa3次的菜鸟飘过~~~~~ Posted by:warc_k at 2011-09-25 07:50:49 
up!
这题用最短路径做真的eggache
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