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也许有paper里面给出了一个非常tight的lower bound,然后用那个heuristic剪枝,我是WA得郁闷了。。。

Posted by LIANGLIANG at 2007-10-08 21:50:29
In Reply To:我也郁闷,一开始就写这个,CE个N次超时,感觉才50个点最多,竟然超了. Posted by:cx19860824 at 2007-10-07 20:13:44


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