#include <iostream>
using namespace std;
 
class Object {
public:
    Object(int i) {
        id = i;
        count++;
        cout<<"Object "<<id<<" is created, we've got "<<count<<" object(s) now!"<<endl;
    }
    ~Object() {
        count--;
        cout<<"Object "<<id<<" is deleted, we've got "<<count<<" object(s) now!"<<endl;
    }
private: 
    int id;
    static int count;
};  
 
int Object::count = 0;
 
void TestObjects()
{
    Object *obj1 = new Object(1);
    Object *obj2 = new Object(2);
    Object *obj3 = new Object(3);
 
    delete obj3;
    delete obj2;
 
    Object *obj4 = new Object(4);
    delete obj4;
 
    delete obj1;
}
 
int main()
{
	TestObjects();
	return 0;
}

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