What does line 8 do?
int main(int argc, char **argv) {
    int size = argc - 1;
    int *score_card[size];

    for (int i = 0; i < size; i++) {
        // NOTE: We haven't covered malloc yet, so don't worry about this line.
        score_card[i] = malloc(sizeof(int));
        *(score_card[i]) = strtol(argv[i + 1], NULL, 10);
    }

    printf("Sum: %d\n", sum_card(score_card, size));

    return 0;
}