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最少需要 最大匹配数/2+未匹配数 而未匹配数＝*的总数－匹配数/2×2＝*的总数－匹配数 所以答案是*的总数－最大匹配数/2In Reply To:AC了 不解 为什么是 *的总数－最大匹配数/2 呢？大牛指点 Posted by:GaryLiang at 2009-09-13 22:24:53 Followed by: Post your reply here: |
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