LastName Unit3 Assignment2c

Lab Objective: In this lab, students will create a C program that contains an array structure. They will

compile and debug their program using Visual Studio 2015.

Problem Statement

Write a program that takes n number of elements from user (where, n is specified by user), stores data in

an array and calculates the average of those numbers.

Use the below program template to answer each question. The program is created by answering all the

questions hence, do not skip any question.

Programming Shell Template

Instructions

1. Using the Xendesktop, open Visual Studio 2015. Create a new project and add a new .c file to the

project. Type the programming shell template as stated up above and continue with the following

steps below. Be sure to include comments throughout your program for readability purposes.

2. (Housekeeping): Declare the following variables in your program using appropriate data type.

When selecting a data type keep in mind the type of value you want to store, i.e., int, float,

character. Also, be sure to use conventional naming standards for all variable declarations.

 n //variable used to store the number of values the user wishes to average

 i //counter variable to loop through each array element

 num[10] //array structure to hold 10 values

 sum

 average

(Hint): Since sum is going to be used for adding the value, it needs to be initialized to zero.

3. (Display Prompt): Write a printf() statement to ask user for the following message.

4. (Input): Add a scanf() statement to store user input for the number of values they wish to

process.

5. (Loop structure): Create a looping structure to catch any user input that may be out of the arrays

storage range. If the user types in a value less than 0 OR greater than 10 print out a message

telling the user that they entered an invalid number. Don’t forget to prompt the user to enter a

valid number and store that value just like you did not steps 1 and 2 above.

6. (Loop structure): Now, you will write a loop structure to store the user input of values to be

averaged into each element of the array.

To begin with, your loop structure will look like this –

7. (Assignment Statement): Outside of the loop you want to create an assignment statement to

compute the averages of the values stored in each array element.

8. (Output): Write a printf() statement to display the value averaging the numbers stored in the

array. Remember, the variable sum is declared outside of the loop so it can be referred/used

anywhere within the main function. Also, to display the value stored in a variable you need to

include a conversion specifier inside of the quotation marks in the printf() and the variable names

within the parentheses.

9. (Output Screen) When you execute the program, it should be similar to the following:

int n;

int i; //count

int sum = 0;

float average;

float num[10];

printf("\nEnter the number of values to be averaged (not to exceed 10):\n");

scanf("%d", &n);

while (n <= 0 || n > 10)

{

printf("You have entered an invalid number. Please try again.\n");

printf("\nEnter the number of values to be averaged (not to exceed

10):\n");

scanf("%d", &n);

}

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

{

printf("\nPlease Enter the elements one by one:\n", i + 1);

scanf("%f", &num[i]);

sum = sum + num[i];

}

average = sum / n;

printf("\nSum of the %d Numbers = %d\n", n, sum);

printf("\nAverage of the %d Numbers = %.2f\n\n", n, average);

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