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也就是说sample答案还可以是1-5,5-4,4-3? 谢谢

Posted by Jayida at 2004-10-26 18:15:10 on Problem 1944
In Reply To:这个例子不够严谨,它是对于n比较大的时候,n=3的话,当然不用这样 Posted by:hawk at 2004-10-26 18:11:13


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