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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 on Problem 1944
In Reply To:疑问 To communicate from barn 1 to barn 3, lines must be laid from barn 1 to barn 2 and also from barn 2 to barn 3. Posted by:Jayida at 2004-10-26 18:09:44
> 这是不是说 假如N=10 To communicate from barn 1 to barn 10, 
> 必须1-2,2-3,.....9-10 ?

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