Question

Please do in C# with the code available to copy :)

Program 4: Design (pseudocode) and implement (source code) a program (name it MinMaxAvg) to determine the highest grade, lowest grade, and the average of all grades in a 4-by-4 two-dimensional arrays of integer grades (representing 4 students’ grades on 4 tests). The program main method populates the array (name it Grades) with random grades between 0 and 100 and then displays the grades as shown below. The main method then calls method minMaxAvg()that takes a two-dimensional array of type integer as a parameter and prints out the class highest grade, the class lowest grade, and class average grade as shown below. Document your code and properly label the outputs as shown below.

Sample run 1:

Array Grades:

38 44 22 91

81 60 71 80

99 49 98 63

71 33 93 49

Highest grade: 99

Lowest grade: 22

Class average: 65.13

Sample run 2:

Array Grades:

60 88 98 100

87 75 68 93

95 86 98 73

56 73 88 71

Highest grade: 100

Lowest grade: 56

Class average: 81.82

I just need the user to enter the values themselves.

please do in C# :)

Answer 1

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MinMaxAvg
{
class Program
{
static void minMaxAvg(int [,] grades)
{
int highest, lowest,sum=0;
double avg;
int r, c;
highest = grades[0, 0];
lowest = grades[0, 0];

for (r = 0; r <= 3; r++)
{
for (c = 0; c <= 3; c++)
{
if (highest < grades[r, c])
{
highest = grades[r, c];
}
if (lowest > grades[r, c])
{
lowest = grades[r, c];
}
sum = sum + grades[r,c];
}
}

avg = (double)sum / grades.Length;

Console.WriteLine(Environment.NewLine );

Console.WriteLine("Highest Grade : "+highest );
Console.WriteLine("Lowest Grade : " + lowest);
Console.WriteLine("Class Average : " +Math.Round( avg,2));
}
static void Main(string[] args)
{
int[,] grades = new int[4, 4];
int r, c;
Console.WriteLine("Enter grades of four students : "+Environment.NewLine );
for (r = 0; r <= 3; r++)
{
Console.WriteLine("Enter grades of student "+(r+1)+" : ");
for (c = 0; c <= 3; c++)
{
grades[r, c] = Convert.ToInt32(Console.ReadLine());
}
}
Console.WriteLine(Environment.NewLine +"Grades of students : "+Environment.NewLine );

for (r = 0; r <= 3; r++)
{
Console.Write("Grades of student " + (r + 1) + " : ");
for (c = 0; c <= 3; c++)
{
Console.Write(grades[r, c]+" ");
}
Console.WriteLine();
}

minMaxAvg(grades);

Console.ReadKey();
}
}
}