تحديات برمجيةالتحدي الثالث - حل التمرين الخامس بلغة C#

using System;

class Program
{
    static void Main(string[] args)
    {
        String[] methods = { "Arabic", "English", "Science", "Math" };
        double[] notes = new double[methods.Length];
        double avg = 0;

        for (int i = 0; i < notes.Length; i++)
        {
            do
            {
                Console.Write("Enter " + methods[i] + " note: ");
                notes[i] = Double.Parse(Console.ReadLine());
            }
            while (notes[i] < 0 || notes[i] > 20);
        }

        for (int i = 0; i < notes.Length; i++)
        {
            avg += notes[i];
        }

        avg /= notes.Length;

        Console.Write("\nAverage = " + avg);
        Console.WriteLine((avg >= 10) ? " [ Succeded ]" : " [ Failed ]");

        Console.ReadKey();
    }
}