Input as=12345, Output’ll be=54321

#include<conio.h>

#include<stdio.h>

#include<math.h>

void main()

{      clrscr();

       int a,b;

       printf("Enter number=");

       scanf("%d",&a);

       while(a>=10)

       {  b=a%10;

                  a=a/10;

                  printf("%d",b);

                                 }

                    printf("%d",a);

                                      getch();

                                       }