How to that in c code

Question

Write a program that reads numbers from the user until the number 0 is e tered, and then prints them in reverse order. Do not use arrays in your solution.
I try this, but it is not working.
https://code.sololearn.com/cBr6wOEQRuKJ/?ref=app

Answer 1

Your code works fine as per your desired output.

Try this input:

1234560789

The output will be:

654321

Answer 2

Don't use getchar(), what if you are trying to input 2 or more digits numbers? Here's my version,

#include <stdio.h>

int main (void)
{
int v;
scanf ("%d", &v);
if (v)
{
main ();
printf ("%d\n", v);
}

return 0;
}