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你试一下..

Posted by hongfei0721 at 2006-07-20 10:41:19 on Problem 1321
In Reply To:为什么wa?查不出来 我觉得思路挺简单的 Posted by:testjoan at 2006-05-20 21:54:33
2 1
#.
#.

输出了 2

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