sda

#include <iostream>
#include <vector>


using namespace std;

 template <class T> class A

{
    public:
        A()
        {

        }
        ~A(){}
        T dubleaza (T param)
        {
            return 2 * param;
        }
        T a;
        std::vector <T> vec;
         void print()
    {
        int i;
      for(i=0;i<vec.size();i++)
        cout<<vec[i];
    }



};

class Punct
{   public:
    Punct(){};
    Punct(int a,int b)
    {
        x=a;
        y=b;
    }
    friend std::ostream& << (std::ostream operator os, const Punct &m)
    {
      os<<m.x<<" "<<m.y<<endl;
      return os;
    }
    int y,x;
};

 class Triunghi
 {
    Triunghi () {}
    std::vector <Punct> v;
 };


int main()
{
    A<int> o;
    o.a=2.2;
    cout<<o.a<<endl;
    A<double> f;
    f.a=2.2;
    cout<<f.a<<endl;
    f.a=f.dubleaza(2.2);
    cout<<f.a<<endl;

    A<int> var;
    A<Punct> d;
    d.vec.push_back(Punct(1,1));
    d.vec.push_back(Punct(2,1));
    A<Triunghi> tr;
    tr.v.push_back(Punct(3,7));
    tr.v.push_back(Punct(2,1));
    tr.v.push_back(Punct(5,2));




    return 0;
}