A program in C++ using classes to find out whether the entered number is automorphic or not.

#include<iostream.h>

#include<conio.h>

#include<math.h>

void main()

{int n,r=0,i,s=0,m,a,b,l,k=0;

cout<<"enter a number";

clrscr();

cin>>n;

l=n;

 while(l!=0)

 {r=l%10;

 s=s+1;

 l=l/10;

 }

 b=n*n;

 m=pow(10,s);

 k=b/m;

 a=b-m*k;

 if (a==n)

  {cout<<"automorphic number"<<n;}

 else

  {cout<<"not automorphic";}

  getch();

}