#include <iostream>
#include <memory>
#include <vector>

/*template<class T, class T2, class T3> class MyClass {
    private:
        T* a;
        T2 *b;

    public:
        MyClass(T a, T2 b) {
            this -> a = new T(a);
            this -> b = new T2(b);
        }

        ~MyClass() {
            delete this -> a;
            delete this -> b;
        }

        T3 summ() {
            return *this -> a + *this -> b;
        }
};*/

class MyClass2 {
    public:
        int x, y, z;
        int* j;

        MyClass2(int x, int y) {
            this->x = x;
            this->y = y;
            this->z = 30;
            this->j = new int(x + y);
        }

        ~MyClass2() {
            delete this->j;
        }

        int summ() {
            return this->x + this->y + this->z;
        }
};

int main() {
    /*MyClass<int, double, float>* my = new MyClass<int, double, float>(10, 3.14f);
    std::cout << my->summ();
    delete my;*/

    /*MyClass2* m = new MyClass2(10, 20);

    std::cout << m->summ();

    delete m;*/

    std::vector<int>* vect = new std::vector<int>();

    vect->push_back(10);
    vect->push_back(20);
    vect->push_back(30);

    std::cout << vect -> at(2) << std::endl;
    std::cout << vect -> size() << std::endl;

    vect->pop_back();

    /*std::cout << "Vector, ebatb:\n";

    for (std::vector<int>::iterator i = vect->begin(); i != vect->end(); ++i) {
        std::cout << *i << "\n";
    } */


}