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Re:题目描述太。。。。。。。他必须休息r分钟

Posted by qishuaidr at 2011-09-12 11:48:02 on Problem 3616
In Reply To:题目描述太。。。。。。。他必须休息r分钟 Posted by:sideman at 2010-05-24 13:51:29
> 如果他在7分钟干完了活 休息2分钟
> 那么从第9分钟又能干活了。。。。。。
> 纱布

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