using System;

using System.Linq;

​

public class Program

{

    static private double Median(double[] array) 

    {

        double[] tempArray = array;

        int count = tempArray.Length;

        Array.Sort(tempArray);

        double medianValue = 0;

        if (count % 2 == 0)

        {

            double middleElement1 = tempArray[(count / 2) - 1];

            double middleElement2 = tempArray[(count / 2)];

            medianValue = (middleElement1 + middleElement2) / 2;

        }

        else

        {

            medianValue = tempArray[(count / 2)];

        }

​

        return medianValue;

    }

​

    public static void Main()

    {

        bool runProgram = true;

​

        while (runProgram)

        {

            Console.WriteLine("How many grades would you like to enter?");

            int numGrades = int.Parse(Console.ReadLine());

​

            // create an array to store grades

            double[] grades = new double[numGrades];

​

            // loop to accept user input for grades

            for (int i = 0; i < numGrades; i++)

            {

                Console.WriteLine("Please enter grade #" + (i+1) + ":");

                grades[i] = double.Parse(Console.ReadLine());

            }

​

            // sort grades array in ascending order

            Array.Sort(grades);

​

            // output grades from smallest to largest

            Console.Write("Your grades from smallest to largest are: ");

            for (int i = 0; i < numGrades; i++)

            {

                Console.Write(grades[i]);

                if (i < numGrades - 1)

                {

                    Console.Write(", ");

                }

            }

            Console.WriteLine();

​

            // calculate average grade

            double average = grades.Average();

            Console.WriteLine("Your average grade is: " + average);

​

            // calculate median grade

            double median = Median(grades);

            Console.WriteLine("Your median grade is: " + median);

​

            // check if passing or failing

            if (average >= 60)

            {

                Console.WriteLine("Congratulations, you are passing!");

            }

            else

            {

                Console.WriteLine("Sorry, you are failing.");

            }

​

            Console.WriteLine("Would you like to run the program again? (y/n)");

            string response = Console.ReadLine();

            if (response != "y" && response != "yes")

            {

                runProgram = false;

            }

        }

    }

}