C , Girilen sayıyı ayırarak alt alta yazdırma ?

#include <stdio.h> 
  #include <stdlib.h> 
  #include <math.h> 
  int main(void) 
  { 
  	double a1,n,x; 
      int basamaksayisi=0,i; 
  	 
  	printf("Enter an integer:"); 
  	scanf("%lf", &n); 
   
   
  	while (n>0) 
  	{ 
  		basamaksayisi++; 
  		n /= 10; 
  	} 
   
  	for (i = 0; i < basamaksayisi - 1; i++) 
  	{ 
   
  		a1 =(n / pow(10,i)); 
  	 
  		printf("%f", a1); 
  		printf("\n"); 
  	} 
   
  printf("Sayi %d basamaklidir",basamaksayisi); 
   
   
  	system("pause"); 
  	return (0); 
  }

Enter an integer: 3182 
  	2 
  	8 
  	1 
  	3

void printDigits(int n){ 
  	while(n != n%10){ 
  		printf("%i\n", n%10); 
  		n/=10; 
  		if(n == n%10) printf("%i\n",n); 
  	} 
  }

#include <stdio.h> 
  #include <stdlib.h> 
   
  int main() 
  { 
     int digit,n,i=0; 
     printf("Bir sayi giriniz: \n"); 
     scanf("%d",&n); 
   
     while(n!=0){ 
      digit=n%10; 
      printf("%d\n",digit); 
      n/=10; 
     i++; 
     } 
   
      return 0; 
  }