Computer Virus Codechef Problem

Правка en2, от Survivor, 2018-10-17 03:21:53

Hi Everyone!
I am trying to solving this codechef problem.
I am stuck in the theoretical mathematics part of it.
The editorial explains some equations which i am unable to understand.
Can somebody please explain me how these equations are formed and worked along and where does this algebraic representation of pascal triangle given in the editorial come from?
Any help is appreciated.

Теги codechef, maths, pascal triangle, combinatorics


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en2 Английский Survivor 2018-10-17 03:21:53 90
en1 Английский Survivor 2018-10-16 09:49:42 543 Initial revision (published)