Exp 7

#include <iostream>

class Complex {
private:
    double real;
    double imaginary;

public:
    Complex(double real, double imaginary) : real(real), imaginary(imaginary) {}

    Complex operator+(const Complex& other) const {
        return Complex(real + other.real, imaginary + other.imaginary);
    }

    Complex operator-(const Complex& other) const {
        return Complex(real - other.real, imaginary - other.imaginary);
    }

    friend std::ostream& operator<<(std::ostream& os, const Complex& complex) {
        os << complex.real << " + " << complex.imaginary << "i";
        return os;
    }
};

int main() {
    Complex c1(3, 4);
    Complex c2(1, 2);

    Complex sum = c1 + c2;
    Complex diff = c1 - c2;

    std::cout << "Sum: " << sum << std::endl;
    std::cout << "Difference: " << diff << std::endl;

    return 0;
}