Proving Binomial coefficients identity (SPOJ KOPC12B)

Правка en1, от Medo., 2017-11-05 19:50:01

Hi CF!

I was recently solving this problem : http://www.spoj.com/problems/KOPC12B/

The problem asks to calculate the summation of

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en2 Английский Medo. 2017-11-06 22:53:30 477 (published)
en1 Английский Medo. 2017-11-05 19:50:01 192 Initial revision (saved to drafts)