AverageGrades

using System;
using System.Linq;

namespace _04.AverageGrades
{
    class Student
    {
        public string Name { get; set; }

        public double[] Grades { get; set; }

        public double AverageGrade { get; set; }
    }
    class AverageGrades
    {
        static void Main()
        {
            Student[] students = ReadStudents();

            foreach (var s in students.Select(st => st.Name).OrderBy(gr => gr))
            {
                var studentsByGrades = s.Where(stu => stu >= 5);

                //Console.WriteLine("{0} -> {1:F2}", s, s);
            }
        }

        private static Student[] ReadStudents()
        {
            int numberOfStudets = int.Parse(Console.ReadLine());

            Student[] students = new Student[numberOfStudets];

            for (int student = 0; student < numberOfStudets; student++)
            {
                students[student] = ReadStudent();
            }
            return students;
        }

        private static Student ReadStudent()
        {
            string[] student = Console.ReadLine().Split();
            double[] grades = new double[];///????
            for (int i = 1; i < student.Length; i++)
            {
                grades[i] = double.Parse(student[i]);
            }

            return new Student
            {
                Name = student[0],
                Grades = grades,
                AverageGrade = grades.Average()
            };
        }
    }
}