AskSia

Plus

Develop a pseudo code and flowchart for a program to calculate an average of 15 ...

May 24, 2024

Develop a pseudo code and flowchart for a program to calculate an average of 15 numbers input by the user. Use pre-test loop. Second, modify your solution by using the post-test loop to develop a pseudo code and flowchart.

Step-by-step Instruction

▪

Use a pre-test loop (while loop) to iterate through the 15 numbers and calculate the sum

▪

Modify the solution to use a post-test loop (do-while loop equivalent in Python) to achieve the same result

▪

Create a flowchart to visually represent the logic of both pre-test and post-test loops

Pseudo Code for Pre-test Loop (While Loop)

plaintext

Pseudo Code for Post-test Loop (Do-While Loop Equivalent)

plaintext

Flowchart for Pre-test Loop (While Loop) 1. Start 2. Initialize "sum" to 0 and "count" to 0 3. While "count" < 15: - Input "number" - Add "number" to "sum" - Increment "count" 4. Calculate "average" as "sum / 15" 5. Print "average" 6. End Flowchart for Post-test Loop (Do-While Loop Equivalent) 1. Start 2. Initialize "sum" to 0 and "count" to 0 3. Do: - Input "number" - Add "number" to "sum" - Increment "count" 4. While "count" < 15 5. Calculate "average" as "sum / 15" 6. Print "average" 7. End Python Code for Pre-test Loop (While Loop)

python

Python Code for Post-test Loop (Do-While Loop Equivalent)

python

Main Function for Testing

python

Explanation

The pre-test loop checks the condition before executing the loop body, while the post-test loop checks the condition after executing the loop body.

Time Complexity

Both loops have a time complexity of

O(n)

where

n

is the number of iterations (15 in this case).

Space Complexity

Both loops have a space complexity of

O(1)

as they use a constant amount of extra space.