#include <stack>
#include <iostream>
#include <vector>



using namespace std;

template <class T>
class Stack {
private:
    vector<T> items;
public:
    void push(T item);
    T pop();
    bool empty();
    size_t size();


};

template <class T>
void Stack<T>::push(T item)
{
    items.push_back(item);
};
template <class T>
T Stack<T>::pop()
{
    if (items.empty()) { throw out_of_range("Stack<>top():pusty stos");}
    T t = items.back();
    items.pop_back();
    return t;
};

template <class T>
bool Stack<T>::empty()
{
    if (items.empty())
    {
        return true;
    }
    else
    return false;
};

template <class T>
size_t Stack<T>::size()
{
    return items.size();
};

int main() {

    Stack<double>doubleSTACK;
    for (int i = 0; i < 20; i++)
    {
        double c = (double)(rand() % 100) / 100;
        cout << "IDEKS : " << i <<" numer "<< c << endl;
        doubleSTACK.push(c);
    }
    cout << doubleSTACK.size() << endl;
    cout << doubleSTACK.pop() << endl;
    cout << doubleSTACK.size();

    system("pause");
}