#include <iostream>
using namespace std;

class myclass{
private:
static int count;

public:
myclass();
~myclass();
void printcount();


};
int myclass::count=0;
myclass::myclass() {
this->count++;}
myclass::~myclass(){
this->count--;}
void myclass::printcount(){
cout<<"there are currently "<<count<<" instance(s) of myclass. \n";
}
int main()
{
myclass *x=new myclass;
myclass *y=new myclass;
myclass *z=new myclass;
x->printcount();
x->printcount();
myclass *t=new myclass;
x->printcount();
y->printcount();
delete x;
y->printcount();
return 0;
}