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Re:关于这题,很无语!!!1

Posted by ACVince at 2014-10-29 15:09:29 on Problem 2425
In Reply To:关于这题,很无语!!!1 Posted by:nower at 2009-08-18 18:57:25
不诡异唉.显然应该局部变量啊.全局的话.某一步dfs在找flag时,发觉某个flag另一步dfs赋值过......明白?

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