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我用回溯和生成函数都做过，必然超时，利用一下奇数和偶数的关系很容易dpIn Reply To:这个题必须dp吗？ Posted by:tide713 at 2005-04-18 12:42:04 > 我看数据挺大的。估计用正常的回溯过不了的吧！？ Followed by:
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