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Re:这道题求置换群的奇偶性有好方法么？In Reply To:这道题求置换群的奇偶性有好方法么？ Posted by:xiaomi at 2003-11-14 16:50:24 > 我是用线段树做的 老外有本叫组合数论的书。。。 Followed by: Post your reply here: |
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