#include <iostream>
#include <cstddef>

enum variety{
    oolong,
    green,
};

class T
{
    public:
        virtual void drink() = 0;
};

class T1: public T
{
    T1() = delete;
    public:
        T1(int a):
          sugar(a)
          {
              std::cout<<"T1 ctorn";
          }
        void drink()
        {
            std::cout<<"Sipping oolong with sugar: "<<sugar<<'n';
        }
        ~T1()
        {
            std::cout<<"T1 dtorn";
        }
    private:
        int sugar;
};

class T2: public T
{
    T2() = delete;
    public:
        T2(int a):
          sugar(a)
          {
              std::cout<<"T2 ctorn";
          }
        void drink()
        {
            std::cout<<"Sipping green with sugar: "<<sugar<<'n';
        }
        ~T2()
        {
            std::cout<<"T2 dtorn";
        }
    private:
        int sugar;
};

class TFactory
{
    TFactory() = delete;
    public:
        static T* brew(variety v, int sugar){
            if(v == oolong)
                return new T1(sugar);
            else if (v== green)
                return new T2(sugar);
            else
                return nullptr;
        }
};

int main(){
    T* t1 = TFactory::brew(oolong, 5);
    t1->drink();
    delete t1;
}