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Re:I think the sample should be

Posted by OurUSTC at 2004-11-28 21:54:54 on Problem 2130
In Reply To:I think the sample should be Posted by:lalala_zju at 2004-11-28 20:31:45

, so for the purpose of this task they can be considered sharing an infinite straight line on the plane.




> 2
> -100 -100 200 100 2.92893219 7.07106781
> 0 0 100 0 0 0
> 2000 0 2000 1 0 0
> 
> ?

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