🎓 c++ series >>> output ques 3rd

Question

what is the output of ..

int a=0;
int * ptr=&a;
if(*ptr)
{
cout<<a;
}
else
{
cout<<"a";
}

Answer 1

if (0)// does not works
so prints a

Answer 2

a??

Answer 3

correct ....👏👏👏