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Re:暴力-》dfs 几点注意的In Reply To:暴力-》dfs 几点注意的 Posted by:TangMing at 2009-08-26 11:33:01 3,对于必选的行,如果它们之间有冲突(某一列选了两次或以上),false掉 如果想不TLE,这一个剪枝就够了。 Followed by:
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