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只用一个一维数组存状态推的时候很容易出错

Posted by c0500448242 at 2005-08-08 11:34:09 on Problem 2184
In Reply To:请救啊,,怎么还是WA啊? Posted by:Essence_me at 2005-08-08 10:36:37
试一下这组数据:
2
1 1
1 2
答案显然应该是5.
你用了一个real数组防止重用,但是却把本来可用的设置为不可用了.

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