#include "iostream"
#include "vector"
using namespace std;
class A{
public:
int x; vector<int> y;
A(){x=1; y.push_back(3);} A(int x){x = 10;}
virtual void f(int a){x=5; cout << "afi" << endl; }
virtual void f(double a){x=7; cout << "aff" << endl; }
};
class B:public A{
public:
int x; float y;
B(){A(4); x=2; y=3;}
void f(double y){x=2.5; y=2.5; cout << "bff"<< endl;}
};
class C:public A{
public:
int x; vector<int> y;
C(){x=3;y.push_back(3);}
void f(int m){x=4;y.push_back(A::x); cout << "cff" << endl;  }
};

int main(){
A* a = new A();
B* b = new B();
C* c = new C();
cout << a->x << " " << b->x << " " << c->x << " " << (*b).A::x << " " << (*c).A::x << endl;
a->f(3); b->f(3); c->f(3); b->f(3.7);
cout << (*a).x << " " << (*b).x << " " << (*c).x << endl;
vector<int>::iterator it; it = c->y.end() -1;
cout << *it  << " " << (*b).A::x << " " << (*c).A::x << endl;
A* d = new C(); B* e = new B();
cout << d->x << " " << d->A::x << " " << e->x << " " << e->A::x << endl;
e->f(3); d = e;
cout << e->x << " " << e->A::x << " " << d->x << endl;
b->A::f(2.5); c->A::f(2.5);
cout << b->x << " " << b->y << " " << b->A::x << " " << c->x << " " << c->A::x << endl;
b->A::f(2); c->A::f(2);
cout << b->x << " " << b->y << " " << b->A::x << " " << c->x << " " << c->A::x << endl;
return 0;
}