class HighScores {
  List<int> scores = <int>[];
  HighScores(List<int> s) {
    scores = s;
  }

  int latest() => scores.last;
  int personalBest() => _sorted().first;
  List<int> personalTopThree() {
    List<int> wrk = _sorted();
    if(wrk.length >= 3) {
      return wrk.sublist(0, 3);
    } 
    return wrk;
  }

  List<int> _sorted() {
    List<int> wrk = List.of(scores);
    wrk.sort((e1, e2) => e2.compareTo(e1));
    return wrk;
  }
}