Coffe

#include <iostream>
#include <string>

using namespace std;

class K1 {
    string* p1;
public:
    K1();
    K1(const K1&);
    K1& operator=(const K1&);

    void setStrings(const string& s1, const string& s2);

};

class K2 {
    K1 p1;
    double p2;
public:
    K2() {};
    K2(const string& s1, const string& s2, double p);
    K2(const K2&);
    K2& operator=(const K2&);
};


K1::K1() {
    p1 = new string[2];
}

K1::K1(const K1& other) {
    this->operator=(other);
}

K1& K1::operator=(const K1& other) {
    this->p1 = other.p1;
}

void K1::setStrings(const string& s1, const string& s2) {
    p1[0] = s1;
    p1[1] = s2;
}

K2::K2(const string& s1, const string& s2, double p) {
    this->p1.setStrings(s1, s2);
    this->p2 = p;
}

K2::K2(const K2& other) {
    this->operator=(other);
}

K2& K2::operator=(const K2& other) {
    this->p1 = other.p1;
    this->p2 = other.p2;
}