Listing 1

#include <stdio.h>
using namespace std;

const int c1 = -1;
#define PI 3.14
int x = 0;
static int n = 0;

struct s1 {
};

typedef s1* t1;

class MyClass
{
public:
    MyClass();
    ~MyClass();
    int myPublicVar;
private:
    void myPrivateMethod();
    int myPrivateVar;
protected:
    void myProtectedMethod();
    int myProtectedVar;
};