// Task 3 public static Students[] FirstNameBeforeLast(Students[] listOfStudents) { return listOfStudents.Where(x => x.FirstName.CompareTo(x.LastName) < 0).ToArray(); }
// Task 4 public static Students[] FindStudentFrom18To24(Students[] listOfStudents) { return listOfStudents.Where(x => x.Age >= 18 && x.Age <= 24).ToArray(); }