COMPUTER SCIENCE ILLUMINATED
COMPUTER SCIENCE ILLUMINATED
7th Edition
ISBN: 9781284208047
Author: Dale
Publisher: JONES+BART
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Chapter 7, Problem 54E
Program Plan Intro

a.

Top-down design process:

  • In the top-down design process, the problem is placed on top of the layer.
  • In each succeeding level, it is divided into small problems and is further divided into smaller problems in its sub layer.
  • In this method, the problem is systematically broken into small problems, which create it more convenient.
  • It is complicated to resolve big problems as compared to smaller problems.

Explanation of Solution

b.

Top-down design for calculating the average of an unknown number of test scores:

  • Assign value to the given variables.
  • Performs iteration for n times.
    • Get the input.
    • Compute the sum of test scores for n scores.
    • Increment the value of counter.
  • Finally, determine the average of test scores.

Example:

The example code for calculating average of unknown number of scores is given below:

//Initialize count to 0

Set count to 0

//Initialize total to 0

Set total to 0      

//Performs iteration for n times

WHILE (number of scores)

   ;&#...

Explanation of Solution

c.

Difference between above two designs:

Top-down design for average of ten test scoresTop-down design for average of...

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