#include <iostream>
 
using namespace std;
 
class Date
{
public:
    int day;
    int month;
    int year;
    string note;
 
    Date ();
    void print ();
    void next ();
    bool less (Date v);
};
 
Date::Date ()
{
    day = 1;
    month = 1;
    year = 2000;
    note = "";
}
 
 
bool Date::less (Date v)
{
    if (year < v.year)
        return true;
    else if (this->year > v.year)
        return false;
    else if (month < v.month)
        return true;
    else if (month > v.month)
        return false;
    else
        return day < v.day;
}
 
 
void Date::print ()
{
    cout << day << "-" << month << "-" << year << endl;
}
 
void Date::next ()
{
    day ++;
    if (day > 31)
    {
        day = 1;
        month ++;
        if (month > 12)
        {
            month = 1;
            year ++;
        }
    }
    print ();
}
 
/* ---------------------------------------------------------------------- */
 
class Point
{
public:
    int x, y, z;
    Point (int x0 = 0, int y0 = 0, int z0 = 0);
};
 
Point::Point (int x0, int y0, int z0) : x (x0), y (y0), z (z0)
{
}
 
void pokus ()
{
    Point p (1, 2, 3);
    Point t (10, 20);
    Point v (100);
    Point z;
 
 
    Point * w = nullptr;
    w = new Point;
    Point * q = new Point (10, 20);
}
 
/* ---------------------------------------------------------------------- */
 
class Array
{
private:
    double * data;
    int size;
public:
    double get (int inx);
    void set (int inx, double val);
    Array (int size0);
    ~ Array ();
};
 
double Array::get (int inx)
{
   return data [inx];
}
 
void Array::set (int inx, double val)
{
   data [inx] = val;
}
 
Array::Array (int size0)
{
    size = size0;
    data = new double [size];
    cout << "Vznika pole o delce " << size << endl;
}
 
Array :: ~ Array ( )
{
    delete [] data;
    data = nullptr;
    cout << "Nicime pole o delce " << size << endl;
    size = 0;
}
 
/* ---------------------------------------------------------------------- */
 
int main()
{
    Array aa (10);
    Array bb (100);
 
 
    Date b;
    Date c;
 
    b.less (c);
 
    b.day = 31;
    b.month = 1;
    b.year = 2018;
    b.note = "Konec ledna";
 
    b.print ();
    b.next ();
    b.print ();
 
    return 0;
}
 
/* ---------------------------------------------------------------------- */
 
int g;
 
void f (int i)
{
    i = i + 1;
    cout << i << endl;
}
 
void ff (int * i)
{
    *i = *i + 1;
    cout << *i << endl;
}
 
void fff (int & i)
{
    i = i + 1;
    cout << i << endl;
}
 
void test ()
{
    int k = 2;
    // f (k);
    // ff (&k);
    fff (k);
    cout << k << endl;
 
}