complex

#include <iostream>

struct complex {
    public:
        complex(float r, float i): re(r), im(i) {}
        complex() {}

        float getRe() const { return re; };
        float getIm() const { return im; };

        complex operator+(const complex& z) {
            return complex( re + z.getRe(), im + z.getIm());
        }

        friend std::ostream& operator<<(std::ostream& os, const complex& z) {
            os << z.getRe() << " + i*" << z.getIm();
            return os;
        }
    private:
        float re, im;
};

complex operator-(const complex& a, const complex& b) {
    return complex( a.getRe() - b.getRe(), a.getIm() - b.getIm());
}

std::istream& operator>>(std::istream& is, complex& z){
    // aici am realizat ca designul meu nu prea permite citirea directa
    float x, y; is >> x >> y;
    z = complex( x, y);

    return is;
}

int main() {
    complex a, b;

    std::cin >> a >> b;
    std::cout << ( a + b) << "\n"
              << ( a - b) << "\n";

    return 0;
}