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我傻了。。。没认真看题。。。。

Posted by lsdnlgd at 2010-04-24 12:54:26 on Problem 1083
In Reply To:才200个房间？？？？ Posted by:lsdnlgd at 2010-04-24 12:53:15 
> RT。。。。我还以为要线段树才过得了。。。。
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