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果然加了个最简单的剪枝就0MS了

Posted by xuchang at 2011-01-25 16:06:44 on Problem 1270
In Reply To:没剪枝,自己写了个全排列,16MS MS用stl的next_permutation很方便的说 Posted by:xuchang at 2011-01-25 15:42:58


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