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Re:我就是这样做的.0MS

Posted by ghost_wei at 2007-02-21 09:09:58 on Problem 3057
In Reply To:Re:这个题怎么做啊. Posted by:LegendaryDan at 2006-10-26 12:42:59
> 先4*12*12^2预处理所有door到person的最短距离。
>  
> 1 时间t递增
> 2 当前时间如果pi能到达dj,则连一条边。
> 3 然后求最大匹配
> 4 删除被匹配的person
> 5 当所有的person都被匹配完后的时间就是最短时间。否则返回1
> 
> 只是感觉,但是不知道这么谈心的搞,对不对,不会证明-_-!~

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