The program for Question 1 is:

6. A combination is the number of different k element subsets from a set of n elements. The general formula of this function is: C(n,k) You are provided an extension on the program you wrote for question 5 as following: int calc_function (int n) /lyour answer to question 1 goes here int combin(int n, int k) if (ncellkcellkon) return e; return calc_function(n)/(calc_function(k)*calc function(n-k)); main() for (int i -; i