[WingedPanther]

Originally Posted by samy

Hi WingedPanther!

Would you like to share the fun with us by giving the program for factorials, permutations, and combinations?

int factorial(int n){
  int fact=1;
  for (int i=1;i<=n;i++) fact*=i;
  return fact;
}

int permutation(int n,r){
  int perm=1;
  for (int i=n-r+1;i<=n;i++) perm*=i;
  return perm;
}

int combination(int n,r){
  return permutation(n,r)/factorial(r);
}