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O(n)吧

Posted by ACM06060 at 2007-09-29 19:28:13
In Reply To:会超时。。。吧 Posted by:mmd at 2007-09-29 19:20:51 
双端队列
重头开始如果当前段小的话就向后死命扩展，然后如果不行了就前面的指针前移一个然后继续过程
最多两个N吧。
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