int count_runners(runner r[], MAX_RUNS){
    int i, count;
    for (i = 0; i < MAX_RUNS; i++){
        while ((strcmp(r[i].name, r[i+1].name) == 0){
                i++;
            }
        count++
    }
    return count;
}
int sort_name_compare(const void *ip1, const void *ip2){
    name  *r1 = (runner *) ip1,
          *r2 = (runner *) ip2;
    if (r1->name != r2->name)
        return (r1->name, r2->name);
    else return 0;
}
int sort_sec_name_compare(const void *ip1, const void *ip2){
    sec  *r1 = (runner *) ip1,
         *r2 = (runner *) ip2;
    if (r1->time_sec == r2->time_sec)
        return (r1->name, r2->name);
    else if (r1->time_sec <= r2->time_sec)
        return (r2->name, r1->name)
}