/*  Reversing a number - Program to find reverse of a given number */

#include  <stdio.h>
#include  <conio.h>

void main()
{
    int  n, rev=0, r, temp ;
    clrscr() ;
    printf("Enter a number: ") ;
    scanf("%d", &n) ;
    temp=n ;
    while(n!=0)
        {
            r=n%10 ;    /* Extract the last digit */
            rev=rev*10+r ;  /* Find reverse */
            n=n/10 ;    /* Reduce number by 1 digit */
        }
    printf("Reverse of %d is %d", temp, rev) ;
    getch() ;
}

/*
Output 1:

Enter a number: 246
Reverse of 246 is 642

Output 2:

Enter a number: 0
Reverse of 0 is 0
*/