#include<vector>
#include<algorithm>
#include<iostream>
using namespace std;

class Example
{
private:
	int data;
	static int count;
public:
	Example (int y = 10){
		data = y;
		count++;
	}
	int getIncCount(){
		return ++count;
	}
	int getIncData(){
		return ++data;
	}
	static int getCount(){
		return count;
	}
};

int Example::count = 0;

int main()
{
    Example ex1(15);
    cout<<"first data set "<<ex1.getIncData()<<" "<< ex1.getIncCount() <<endl;
    Example ex2;
    cout<<"first data set "<<ex2.getIncData()<<" "<< ex2.getIncCount()<<endl;
    cout<<"main data "<<Example::getCount()<<endl;
    ex1.getIncCount();
    cout<<"first data set "<<ex1.getIncData()<<" " <<ex1.getCount()<<endl;
    cout<<"first data set "<<ex2.getIncData()<<" "<< ex2.getCount()<<endl;
    cout<<"first data set "<<ex1.getIncData()<<" "<< ex1.getIncCount()<<endl;

    //Question 6: compiles
    //copy constructor is generated by compiler (performs memberwise assignment)
    /*
    Example ex3=ex1;
    cout<<"third data set "<<ex3.getIncData()<<" "<< ex3.getIncCount()<<endl;
    */
    //Question 7: does not compile
    //overloaded ++ operator
    //ex3++;
    //++ex3;

    return 0;
}