HHW Q3. WAP to enter age of a person and check his eligibility to vote .

#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
int a,b;
cout<<"Enter your present age ";
cin>>a;
if (a>=18)
   { cout<<"You are Eligible to vote ";
   }
else
   { b=18-a;
     cout<<"You are not eligible to vote but after "<<b<<" years you will be eligible to vote ";
   }
getch();
}