using System;

using System.Linq;

​

​

public class Program

{

        public static float[] arrayAvg(float[, ] a)

    {

        float[] tempArray = new float[a.GetLength(0)];

        float sum = 0;

        for (int i = 0; i < a.GetLength(0); i++)

        {

            for (int j = 0; j < a.GetLength(1); j++)

            {

                sum = sum + a[i, j];

            }

​

            float avg = sum / (a.GetLength(1));

            tempArray[i] = avg;

            sum = 0;

        }

​

        return tempArray;

    }

    public static void Main()

    {

    string input = ":D";

        Console.WriteLine("How many students are in your class?");

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

            string [ ] students = new string [n];

            Console.Clear();

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

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

        Console.Clear();

        Console.WriteLine("Please enter the name of the students now! ");

        for (int i = 0; i < students.Length; i++)

        {

        int q = i+1;

        Console.WriteLine("Please enter student number " + q + "'s name" );

        students[i] = Console.ReadLine();   

        }

        float [,] grades = new float[n,num];

        for (int i = 0; i < grades.GetLength(0); i++)

        {

​

            for (int j = 0; j < grades.GetLength(1); j++)

            {           int w = j+1;

                Console.WriteLine("Please enter value grade " + w + " for " + students [i]);

                grades [i,j] = float.Parse(Console.ReadLine());

                Console.Clear();

            }

        }

        Console.WriteLine("Grades");

        Console.WriteLine("------------------------------------------------------------------------------------------");

        for (int l = 0; l < students.GetLength(0); l++)

        {

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

        {

            for(int j = 0; j < num; j++)

            {

                if (grades[i,j] < 10)

                {Console.Write(grades[i,j] + "    | ");

                }

                else if (grades[i,j] >= 10 && grades[i,j] < 100)

                {Console.Write(grades[i,j] + "   | ");

                }

                else if (grades[i,j] >=  100)

                {Console.Write(grades[i,j] + "  | ");

                }

            }

    }

            Console.WriteLine();

            Console.WriteLine("------------------------------------------------------------------------------------------");

        }

        float [] myAvg = arrayAvg(grades);

        Console.WriteLine("The below students have made Honor Roll");

            Console.WriteLine();

        for (int i = 0; i < myAvg.Length; i++)

        {

            if (myAvg[i] > 90)

                Console.WriteLine(students[i]);

        }

            Console.WriteLine();

            Console.WriteLine("The students below have failed");

            Console.WriteLine();

        for (int i = 0; i < myAvg.Length; i++)

        {

            if (myAvg[i] < 65)

                Console.WriteLine(students[i]);

        }

        Console.WriteLine();

        Console.WriteLine("The below students have passed");

        Console.WriteLine();

        for (int i = 0; i < myAvg.Length; i++)

        {

            if (myAvg[i] > 70)

                Console.WriteLine(students[i]);

        }

}

    }

​

​