Recursion: why the top of the stack is repeating twice - objective-c

Question

I don't understand why the top of the stack is repeating two times.
Here's my code:
void count(n){
if (n>0) {
printf("Count is %i \n",n);
n=n-1;
count(n);
} else {
printf("Count is %i. Finished. \n",n);
}
printf("The count here is %i \n",n); //recursion here
}
int main(int argc, const char * argv[])
{
#autoreleasepool {
count(5);
}
return 0;
}
The output is:
Count is 5
Count is 4
Count is 3
Count is 2
Count is 1
Count is 0. Finished.
The count here is 0
The count here is 0
The count here is 1
The count here is 2
The count here is 3
The count here is 4
Program ended with exit code: 0
So, why are there two lines of output that say "The count here is 0" ?
Isn't the first line, the 'first' time through the recursion?

Answer 1

Think about your code logically and I think you will see why that line is being printed twice. Consider the case when we reach this statement: n=n-1; and n is currently (before this is executed) equal to 1. Now n is 0 and you call count(n), calling your function recursively as I think you might have been saying. Now your count(0) function call will go here:
else {
printf("Count is %i. Finished. \n",n);
}
because n is not greater than 0. This is where we have your output: Count is 0. Finished.
Then, your functions next statement is: printf("The count here is %i \n",n); //recursion here
This causes the first output of: The count here is 0.
Now consider what happens. Your count(0) call is done and returns to the function it was called from. In this case, consider where you called it from. You called it from the function which was called as count(1), but now in that function, be causes of your n=n-1;, n is 0.
Following your code, after the if statement, your program will immediately proceed to: printf("The count here is %i \n",n); //recursion here
Because n is 0, it will output: The count here is 0 again.

Answer 2

Are you sure you want:
n=n-1;
count(n);
rather than this?
count(n-1);
The former will modify the value of n printed in your later printf, whereas the latter only modifies it in the recursive call.