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最先我也没看懂。。。后来突然明白。。。相当于这是有n个大小依次增大，外面的门包含里面的门的门字形的门（绕口。。。），当state为0时，就是这n个门都没有开，为k时，就是依次从最小的那个门开始打开了k个门。。。只要看明白这个就明白这题怎么做了。。。In Reply To:没看懂题 Posted by:coka at 2009-06-04 09:22:41 > 哪位大牛能解释一下题目呀 > > 还有纸上数据,解释一下吧 Followed by:
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