#include <iostream>

using namespace std;

class IntCounter
{
private:
    int *value;
    int *counter;

public:
    IntCounter(int *value)
    {
        this->value = value;
        counter = new int(1);
    }

    IntCounter(const IntCounter &other)
    {
        value = other.value;
        counter = other.counter;
        (*counter)++;
    }

    ~IntCounter()
    {
        (*counter)--;
        if (*counter == 0 && value)
        {
            delete value;
        }
    }

    int getValue() { return *value; }
};

int main()
{
    int *a = new int(5);
    IntCounter b(a);
    IntCounter c = b;
    IntCounter d = b;

    cout << d.getValue();
}