kol1

#include <iostream>

using namespace std;

class K1;
class K2;

class K1 {
    string* p1;
public:
    K1() : p1(new string[2]){
        p1[0] = "brak danych";
        p1[1] = "brak danych";
    }
    K1(const string& a1, const string& a2) : p1(new string[2]) {
        p1[0] = a1;
        p1[1] = a2;
    }
    K1(const K1& r) : p1(new string[2]) {
        p1[0] = r.p1[0];
        p1[1] = r.p1[1];
    }

    friend ostream& operator<<(ostream& out, const K1& r);
    friend K2;
    ~K1() { delete [] p1; }
};
class K2 {
    K1 p1;
    double p2;
public:
    K2() :p1(), p2(0) {}
    K2(const string& a1, const string& a2, const double& a3) : p1(a1, a2), p2(a3) {}
    K2(const K2& r) : p1(r.p1), p2(r.p2) {}

    /*K2& operator=(const K2& r) {
        if (this != &r) {
            p1 = r.p1;
            p2 = r.p2;
        }
        return *this;
    }*/

    friend ostream& operator<<(ostream& out, const K2& r);

    const K2 operator-(const double& l) {
        return K2(p1.p1[0], p1.p1[1], (p2 - l));
    }
};
ostream& operator<<(ostream& out, const K2& r) {
    return out<< r.p1 << r.p2 << endl;
}
ostream& operator<<(ostream& out, const K1& r) {
    return out << r.p1[0] << ' ' << r.p1[1];
}




int main()
{
    K2 ob1, ob2;
    const K2* wsk1 = new K2("kawa", " z mlekiem", 4.50);
    const K2 ob3(*wsk1);
    delete wsk1;
    wsk1 = 0;

    const K2* wsk2 = new K2(ob3);
    ob2 = *wsk2;
    cout << ob1 << *wsk2;
    delete wsk2;
    wsk2 = 0;
    cout << ob2;
    cout << ob2-1.25;
}