Tips to convert C program to C++ program

• Change the header file from "#include<stdio.h>" to "#include<iostream>.h"
• For input use "cin>>" instead of "scanf".
• For output use "cout<<" instead of "printf".
• Don't use "%" symbol and "&" sign in "cin>>" statement.
• clrscr() must be used before initialization and declaration in C++ programming.

For example, let us compare with the program to find whether the given number is Adam Number or not.

C Program

C++ Program

#include<stdio.h> #include<conio.h> #include<math.h> void main() { int r,p,m,b,n,rev,a,c,i,z; r=0; rev=0; clrscr(); printf("Enter any number between 10 and 100:"); scanf("%d",&z); n=z; c=n*n; while(n!=0) { m=n%10; r=r*10+m; n=n/10; } printf("\nThe square of %d is %d",z,c); printf("\nThe reverse of %d is %d",z,r); p=r*r; printf("\nThe square of %d is %d",r,p); while(c!=0) { a=c%10; rev=rev*10+a; c=c/10; } if(rev==p) printf("\n%d is an Adam Number",z); else printf("\n%d is not an Adam Number",z); getch(); }

#include<iostream.h> #include<conio.h> #include<math.h> void main() { clrscr(); int r,p,m,b,n,rev,a,c,i,z; r=0; rev=0; cout<<"Enter any number between 10 and 100: "; cin>>z; n=z; c=n*n; while(n!=0) { m=n%10; r=r*10+m; n=n/10; } cout<<"\n"<<"The square of "<<z<<"is "<<c; cout<<"\n"<<"The reverse of "<<z<<"is "<<r; p=r*r; cout<<"\n"<<"The square of "<<r<<"is "<<p; while(c!=0) { a=c%10; rev=rev*10+a; c=c/10; } if(rev==p) cout<<"\n"<<z<<" is an Adam Number"; else cout<<"\n"<<z<<" is not an Adam Number"; getch(); }