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就因为这个WA了半天。。。

Posted by convex at 2009-10-17 13:56:58 on Problem 3511
In Reply To:L和U可能是负数,两个都为-1时才退出程序。一不小心错在这里了…… Posted by:cppb at 2008-10-29 10:02:47


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