//---------------------------------------------------------------------------

#pragma hdrstop
#include <iostream.h>

//---------------------------------------------------------------------------

struct TPoint {
        int x, y;
};

struct TListItem {
        TPoint value;
        TListItem *Next;
};

class TSet {
        private:
        int listSize;
        int maxValue;
        TListItem *First, *Last;

        public:
        TSet() {
                listSize = 10;
                maxValue = 20;
                First = NULL;
                Last = NULL;
        }

        ~TSet() {
                destroySet();
        }

        void destroySet() {
                TListItem *t = First, *r;

                while (t != NULL) {
                        r = t->Next;
                        free(t);
                        t = r;
                }
                First = NULL;
                Last = NULL;
        }

        void input() {
                srand(time(NULL));

                TPoint p;
                for(int i = 0; i < listSize; i++) {
                        p.x = (rand() % maxValue) - maxValue/2;
                        p.y = (rand() % maxValue) - maxValue/2;
                        addItem(p);
                }
        }

        void addItem(TPoint p) {
                if(First == NULL) {
                        First = (TListItem*) malloc(sizeof(TListItem));
                        First->Next = NULL;
                        First->value = p;
                        Last = First;
                } else {
                        Last->Next = (TListItem*) malloc(sizeof(TListItem));
                        Last->Next->Next = NULL;
                        Last->Next->value = p;
                        Last = Last->Next;
                }
        }

        void output() {
                TListItem *t = First;
                while(t != NULL) {
                        cout << "(" << t->value.x << ";" << t->value.y << ") ";
                        t = t->Next;
                }
                cout << endl;
        }

        TSet& operator=(const TSet &ob) {
                destroySet();
                TListItem *t = ob.First;
                while(t != NULL) {
                        addItem(t->value);
                        t = t->Next;
                }
                return *this;
        }

        int static getNumber(){
                return 5;
        }
};

#pragma argsused
int main(int argc, char* argv[])
{
        TSet ob1, ob2;
        TPoint p;
        p.x = 1;
        p.y = 2;

        ob1.input();
        ob1.output();

        ob2 = ob1;

        ob2.addItem(p);
        ob1.output();
        ob2.output();

        cin.get();
        cin.get();
        return 0;
}
//---------------------------------------------------------------------------