#include <stdio.h>
struct wezel
{
int licznik, liczba;
struct wezel *prawy;
struct wezel *lewy;
};
struct wezel* wkorzen = NULL;
struct wezel *nowy_wezel(int x)
{
struct wezel *wsk = malloc(sizeof(struct wezel));
wsk->licznik = 1;
wsk->liczba = x;
wsk->lewy = NULL;
wsk->prawy = NULL;
return wsk;
}
void dodaj(int x)
{
if(wkorzen == NULL)
{
wkorzen = nowy_wezel(x);
return;
}
struct wezel *p1 = wkorzen;
struct wezel *p2;
while(p1 != NULL)
{
p2 = p1;
if(p1->liczba < x)
{
p1 = p1->prawy;
}
else if(p1->liczba > x)
{
p1 = p1->lewy;
}
else
{
p1->licznik++;
return;
}
}
if(p2->liczba < x)
{
p2->prawy = nowy_wezel(x);
}
else
{
p2->lewy = nowy_wezel(x);
}
}
void pisz(struct wezel *wsk)
{
if(wsk == NULL) return;
pisz(wsk->lewy);
printf("liczba: %d licznik:%d\n", wsk->liczba, wsk->licznik);
pisz(wsk->prawy);
}
int main(void)
{
dodaj(5);dodaj(17);dodaj(2);dodaj(12);dodaj(5);dodaj(7);
pisz(wkorzen);
}
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