teste realloc

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

int main() {

    int* num = NULL;
    int tam = 0;
    int fim = 1;
    int ent;

    while (fim != 0) {
        printf("\ndigite um numero: ");
        scanf("%d", &ent);

        if (ent == 0) {
            fim = 0;
        } else {
            num = realloc(num, (tam + 1) * sizeof(int));
            if (num == NULL) {
                printf("Memory allocation failed.\n");
                return 1;
            }
            num[tam] = ent;
            tam++;
        }
    }

    printf("\no que vc digitou: ");
    for (int i = 0; i < tam; i++) {
        printf("\n%d", num[i]);
    }

    free(num);
    return 0;
}