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置换的奇偶性你可以AC嘛? 如果有 A的代码发邮箱..借鉴呵```(我的用置换奇偶性给WA掉了...YM)In Reply To:这道题目其实判断置换的奇偶性也能求解 Posted by:huicpc21 at 2006-07-30 17:16:43 > Followed by: Post your reply here: |
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