C语言反向编号

#include<stdio.h>
 int main()  
{  
int n, reverse=0, rem;  
printf("Enter a number: ");  
  scanf("%d", &n);  
  while(n!=0)  
  {  
     rem=n%10;  
     reverse=reverse*10+rem;  
     n/=10;  
  }  
  printf("Reversed Number: %d",reverse);  
return 0;
} 

Enter a number: 123
Reversed Number: 321