Struktururur

struct participant_data {
    long place;
    std::string surname;
    long number;
    tm time;
    participant_data *next;

    participant_data();

    std::string print();
};

struct ranking_list {
    std::string name;
    time_t date;
    participant_data *first;

    ranking_list();

    void add(long place, std::string surname, long number, tm *time);

    void print();
};