The Program in C# Program to Compute Difference Between largest and smallest values in Given array is given below:

using System;

namespace ArrayDifference
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello Codeauri Family,enter the number of elements in the array to find the difference between largest and smallest value:");
            int numberOfElements = Convert.ToInt32(Console.ReadLine());
            int[] numbers = new int[numberOfElements];
            int min = int.MaxValue;
            int max = int.MinValue;

            for (int i = 0; i < numberOfElements; i++)
            {
                Console.WriteLine("Well, enter an  element here" + (i + 1) + ":");
                numbers[i] = Convert.ToInt32(Console.ReadLine());
            }

            foreach (int number in numbers)
            {
                if (number < min)
                {
                    min = number;
                }
                if (number > max)
                {
                    max = number;
                }
            }

            Console.WriteLine("Okay, the difference between the largest and smallest values is: " + (max - min));
        }
    }
}

Output:

Hello Codeauri Family,enter the number of elements in the array to find the difference between largest and smallest value:
3

Well, enter an element here1:
20
Well, enter an element here2:
30
Well, enter an element here3:
10
Okay, the difference between the largest and smallest values is: 20

Pro-Tips💡

Here are the step by step execution of above program:

1. The first line using System; is a directive that includes the System namespace, which contains several important classes, including the Console class used later in the code.
2. The next line namespace ArrayDifference declares the namespace for the code, which helps organize it and avoid naming collisions with other code.
3. The next line class Program declares the main class for the code, which contains the Main method that will be executed when the program is run.
4. The next line static void Main(string[] args) declares the Main method, which is the entry point for the program. This method takes an array of strings as an argument, which can be used to pass command-line arguments to the program.
5. The next line Console.WriteLine("Enter the number of elements in the array:"); outputs a prompt to the console asking the user to enter the number of elements in the array.
6. The next line int numberOfElements = Convert.ToInt32(Console.ReadLine()); reads the user’s input as a string, converts it to an integer using the Convert.ToInt32 method, and stores the result in the numberOfElements variable.
7. The next line int[] numbers = new int[numberOfElements]; creates an array of integers with numberOfElements elements, which will be used to store the user’s input.
8. The next line int min = int.MaxValue; declares and initializes a variable min to the maximum value of an int, which is used as the initial value for finding the minimum value in the array.
9. The next line int max = int.MinValue; declares and initializes a variable max to the minimum value of an int, which is used as the initial value for finding the maximum value in the array.
10. The next line for (int i = 0; i < numberOfElements; i++) starts a for loop that will iterate numberOfElements times.