Someone

#include <iostream>using namespace std;class cls{public:	static int x;	cls()	{		x++;		cout<<x<<"-\n";	}	~cls()	{		cout<<"destruct"<<x--<<"\n";	}};int cls::x=0;void f(cls &a){	cls c;	cout<<a.x<<"+\n";	return ;}int main(){    cls r;    cout<<r.x<<"=\n";     f(r);	return 0;}