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谢谢，终于过了，这题有几处表述不明In Reply To:Re:这题会不会有impossible啊? Posted by:kaikai at 2003-11-08 14:36:44 在cross的等待时间要在下一班火车到达该cross之前（小于），而不是小于等于 到达下一个cross的时间应在某列火车到达该cross的时间之前（小于），或某列火车刚好离开该cross的时间或之后（大于等于） Followed by: Post your reply here: |
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