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管理员请来。。这题数据中有 （x,x] (x,x) [x,x)等不合法的表示吗？。。。不要告诉我这些表示合法。。。

Posted by 273544537 at 2007-05-24 21:10:13 on Problem 3225 
我用控制变量法得到数据中有，当然也有可能我的程序错了。。。
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