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WA掉的进来看几个问题

Posted by kenv07 at 2011-03-04 21:30:22 on Problem 1141 
题目和算法艺术上面添加方式稍有不同

设串A合法

例如 串S=A]，那么应该添加为A[]
      S=[A，应该添加为[]A

另外就是需要考虑空串情况

我用记忆化搜索搞出来的

额，P语言，代码就不贴了
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