Hi Everyone!<br>↵
I am trying to solving this codechef [problem](https://www.codechef.com/problems/CMPVIRS).<br> I am stuck in the theoretical mathematics part of it.<br> The [editorial](https://discuss.codechef.com/questions/125361/cmpvirs-editorial) explains some equations which i am unable to understand. <br>↵
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](https://discuss.codechef.com/questions/125361/cmpvirs-editorial) come from?<br> ↵
Any help is appreciated.<br>↵
Thanks.
I am trying to solving this codechef [problem](https://www.codechef.com/problems/CMPVIRS).<br> I am stuck in the theoretical mathematics part of it.<br> The [editorial](https://discuss.codechef.com/questions/125361/cmpvirs-editorial) explains some equations which i am unable to understand. <br>↵
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](https://discuss.codechef.com/questions/125361/cmpvirs-editorial) come from?<br> ↵
Any help is appreciated.<br>↵
Thanks.
