return s(n?

What happens when you attempt to compile and run the following code?

#include <iostream>

using namespace std;

int s(int n);

int main()

{

int a;

a = 3;

cout << s(a);

return 0;

}

int s(int n)

{

if(n == 0) return 1;

return s(n?1)*n;

}
A . It prints: 4
B.It prints: 6
C.It prints: 3
D.It prints: 0

View Answer

Answer: B