factorial_habr

#include <stdio.h>
int factorial(int n) {
if (n == 0)
return 1;
return n * factorial (n - 1);
}
int main () {
int i;
int n;
for (i = 0; i < 10; ++i) {
n = factorial (i);
printf ("factorial(%d) = %d\n", i, n);
}
return 0;
}