Question

I have the following function:

      int v[]={0,1,1,1};
      int f(int x)
      {
          if(x>=1)  return v[x]+f(x-1);
          else return 0; 
      }

When I called it in main like so: cout<<f(4); It’s outputting ‘4’ but I expect to be ‘3’
Can someone clarify why I get ‘4’ and not ‘3’ ? (I think I’m missing something)

Answer 1

v[4] is not defined. It has 4 elements, so the max array index is 3.