Abstract class

#include <iostream>

/* Podejście polimorficzne, mądre i dobre: */

class Human
{
    private:
        std::string name;
    public:
        Human() {};
        Human(std::string name) : name(name) {}
        virtual void sayHi() { std::cout << "Hello from Human!" << std::endl; }
        virtual void sayIdentity() = 0;

    /*  ^^^^^^^ Jedyna zmiana */
};

class Man : public Human
{
    public:
        Man() {};
        Man(std::string name) : Human(name) {}
        void sayIdentity() { std::cout << "I'm a Man" << std::endl; }
        virtual void sayHi() { std::cout << "Hello from Man!" << std::endl; }

};

class Woman : public Human
{
    public:
        Woman() {};
        Woman(std::string name) : Human(name) {}
        void sayIdentity() { std::cout << "I'm a Woman" << std::endl; }
        virtual void sayHi() { std::cout << "Hello from Woman!" << std::endl; }

};



int main()
{


    Human* h_array[10];
    for (int i = 0; i < 10; ++i)
    {
        if (i%2==0)
            h_array[i] = new Man();
        else
            h_array[i] = new Woman();

        h_array[i]->sayHi();
        delete h_array[i];
    }

    std::cout << std::endl;

    return 0;
}