Discussion @ 1828. Approximation by a Progression @ Timus Online Judge

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Discussion of Problem 1828. Approximation by a Progression

Example

Posted by bet 19 Mar 2011 15:39

Why in test 1 answer: 0.400 4.900 ?
If b = 0.400, d = 4.900, ∑(ai − bi)^2 = 1,524.
If b = 0.105263, d = 5.026316, ∑(ai − bi)^2 = 0,824 < 1,524.

Re: Example

Posted by daftcoder [Yaroslavl SU] 19 Mar 2011 17:00

If b = 0.400, d = 4.900, ∑(ai − bi)^2 = 0.700