/* 1. Write a C++ program to create a class called as COMPLEX, and implement the following by overloading the function ADD which returns the COMPLEX number.
(i) ADD(s1,s2)- where s1 is an integer(real part) and s2 is a COMPLEX number.
(ii) ADD(s1,s2)- where s1 and s2 are COMPLEX numbers.
Display the result by overloading the operator <<. */

#include<iostream.h>
#include<conio.h>
#include<math.h>
class COMPLEX
{
    int real;
    int img;

    public:
        void READ()
        {
            cout<<"\nEnter real part of COMPLEX number : ";
            cin>>real;
            cout<<"\nEnter imaginary part of a COMPLEX number : ";
            cin>>img;
        }
        COMPLEX ADD(int s1,COMPLEX s2);
        COMPLEX ADD(COMPLEX s1,COMPLEX s2);
        friend ostream& operator <<(ostream& Out,COMPLEX s);
};
ostream& operator <<(ostream& Out,COMPLEX s)
{
    if (s.img < 0)
        Out<<s.real<<"-i"<<abs(s.img);
    else
        Out<<s.real<<"+i"<<abs(s.img);
    return Out;
}
COMPLEX COMPLEX::ADD(int s1,COMPLEX s2)
{
    real = s1 + s2.real;
    img = s2.img;
    return (*this);
}
COMPLEX COMPLEX::ADD(COMPLEX s1,COMPLEX s2)
{
    real = s1.real + s2.real;
    img = s1.img + s2.img;
    return (*this);
}
void main()
{
    COMPLEX a,b,c;
    int realno;
    clrscr();
    cout<<"Enter the values for the 1st COMPLEX number\n";
    a.READ();
    cout<<"\n\nEnter the values for the 2nd COMPLEX number\n";
    b.READ();
    c.ADD(a,b); /* Add two COMPLEX numbers */
    cout<<"\n\nResult - Addition of 2 complex numbers is : ";
    cout<<a<<" + "<<b<<" = "<<c;
    cout<<"\n\nEnter integer constant (real part) to be added to a complex no : ";
    cin>>realno;
    c.ADD(realno,b);
    cout<<"\nResult - Addition of integer (real part) & a complex no is :\n";
    cout<<b<<" + "<<realno<<"+i0 = "<<c;
    getch();
}