What is the return value of f (p,p) if the value of p is initialized to 5 before the call? Note that the first parameter is passed by reference, whereas the second parameter is passed by value.
int f (int & x, int c) {
C = C-1;
if (c = 0) return 1;
x = x + 1;
return f(x,c) * x;
}
(A) 3024
(B) 6561
(C) 55440
(D) 161051
