zadatak 2

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

struct CVOR
{
	int key;
	struct CVOR*cvor_levo;
	struct CVOR*cvor_desno;
};

void dodaj(struct CVOR *i, int h)
{
	i->key = h;
};

struct CVOR *create()
{
	struct CVOR* i = (struct CVOR*)malloc(sizeof(struct CVOR));
	i->cvor_levo = 0;
	i->cvor_desno = 0;
	return i;
};

void POSTORDER(struct CVOR *i)
{
	if (i->cvor_levo != 0)
		POSTORDER(i->cvor_levo);
	if (i->cvor_desno != 0)
		POSTORDER(i->cvor_desno);
	printf("%d ", i->key);
};

void main(void)
{
	struct CVOR*koren;

	koren = create();
	dodaj(koren, 4);

	koren->cvor_desno = create();
	dodaj(koren->cvor_desno, 5);

	koren->cvor_levo = create();
	dodaj(koren->cvor_levo, 2);

	koren->cvor_levo->cvor_levo = create();
	dodaj(koren->cvor_levo->cvor_levo, 1);

	koren->cvor_levo->cvor_desno = create();
	dodaj(koren->cvor_levo->cvor_desno, 3);


	printf("%s\n", "POSTORDER:");
	POSTORDER(koren);
	printf("\n\n");

	system("pause");

}