재귀함수 두 숫자 gcd

#include <stdio.h>
int hcf(int n1, int n2);

int main(void){
int n1, n2;
printf("Enter two positive integers: ");
scanf("%d %d", &n1, &n2);

printf("G.C.D of %d and %d is %d.", n1, n2, hcf(n1,n2));
return 0;
}

int hcf(int n1, int n2){
if (n2 != 0)
return hcf(n2, n1%n2);
else
return n1;
}

/*
Enter two positive integers: 365
60
G.C.D of 365 and 60 is 5. */