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应该给足够的时间都能AC的。。。

Posted by js05 at 2005-05-20 19:55:54 on Problem 2104
In Reply To:作业就是出题啊？表达式的题我见过最强的就是CTSC2004的math，当时国家集训队所有人得分加起来还是0。。。 Posted by:js05 at 2005-05-20 19:48:11 
这个题的麻烦在于：

它不但支持分式和矩阵，而且分式里可以套矩阵，矩阵里又可以搞分式，这么搞下去，怎么可能能写对呀。。。
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