Simple dynamic array in C

dynamic_array.c

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

int main()
{
    int *tomb = NULL;
    int n = 0;           // elemszám

    while (1)
    {
        int szam;
        printf("Pozitiv szam (kilepes: 0): ");
        scanf("%d", &szam);

        if (szam == 0)
        {
            break;
        }

        tomb = realloc(tomb, (n+1) * sizeof(int));
        tomb[n] = szam;
        ++n;
    }

    puts("A megadott szamok:");
    for (int i = 0; i < n; ++i) {
        printf("%d ", tomb[i]);
    }
    puts("");

    free(tomb);

    return 0;
}