#include <iostream>
#include <vector>
#include <c++/map>
#include <c++/fstream>

using namespace std;

template <typename T>
void swap2(T &t1, T &t2)
{
    T tmp = t1;
    t1 = t2;
    t2 = tmp;
}

class Bryla{
    public:
        Bryla(){ };
        virtual double obj() = 0;
};

class Szescian : public Bryla{
    private:
        double a;
    public:
    Szescian(double a) : a(a){ };

    double obj() override
    {
        return a*a*a;
    }

};

class Kula : public Bryla{
private:
    double r;
public:
    Kula(double r) : r(r) {};
    double obj() override
    {
        double PI = 3.14;
        return 4/3*PI*r*r*r;
    }
};

class ReadFile{
private:
    string fName;
    fstream plik;
    map<string, int> wyrazy;
public:
    ReadFile(const string & f) : fName(f){};
    void readWords()
    {
        plik.open(fName,ios::in);
        if(!plik.good())
            throw runtime_error("Nie mozna odczytac pliku");
        else
        {
            string tmp;
            while(!plik.eof())
            {
                plik >> tmp;
                auto it = wyrazy.find(tmp);
                if(it == wyrazy.end())
                {
                    wyrazy.insert(make_pair(tmp,1));
                }
                else
                {
                    it->second++;
                }
            }
        }
    }
};

int main()
{
    int a, b;
    a = 5;
    b = 3;
    cout << a <<  " " << b << endl;
    swap2(a,b);
    cout << a << " " << b << endl;


    vector<Bryla*> bryly(2);
    bryly[0] = new Kula(5);
    bryly[1] = new Szescian(10);
    double objsum = 0;
    for(const auto& b : bryly)
    {
        objsum += b->obj();
    }
    double objAvg = objsum / bryly.size();
    cout << objAvg << endl;

    ReadFile rf("test.txt");
    rf.readWords();

    return 0;
}