Number reverse

#include<stdio.h>
int reverse_number(int num);
main()
{
//To take the decimal part and fraction part separately.
    int n1,n2;
    scanf("%d.%d", &n1, &n2);
    printf("%d.%d", reverse_number(n2), reverse_number(n1));
}
//Function to reverse a number.
int reverse_number(int num)
{
    int reverse_num=0;
    while(num!=0)
    {
        reverse_num=reverse_num*10;
        reverse_num=reverse_num + num%10;
        num=num/10;
    }
    return reverse_num;
}