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纪念一次暂时第一以及马上的300！！！贪心啊！纯贪心。不用dp，还有题目是开始选课了以后，之后只能每5分钟选一次，不能等6分钟，7分钟之类，弄得我以为是dp。 Followed by: Post your reply here: |
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