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第6分钟到达2,然后一直等到51分钟的时候开始从2出发,自然是51+76=127的时间到达4咯

Posted by pku007 at 2007-04-07 00:18:39 on Problem 1158
In Reply To:!!求样例解释 Posted by:yaliyali at 2006-05-23 09:30:10


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