Answered: e provided for reference only.…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Please explain the following code example. Also, identify three comments to be inserted, proposed syntax and specify where (line number references) they are to be inserted.

Ensure you are precise, detailed and explicit in your descriptions.

Line numbers (e.g. 10.) are provided for reference only.

list1 = [10, 21, 4, 45, 66, 93]
num = 0
while(num < len(list1)):
if num % 2 == 0:
print(list1[num], end = " ")
num += 1

Expert Solution

Step 1

list1 = [10, 21, 4, 45, 66, 93]
num = 0
while(num < len(list1)):
if num % 2 == 0:
print(list1[num], end = " ")
num += 1

This code is written to give output of all the even numbers form a given list.

1: define a list

2. intialize a variable num

3. use while loop to traverse through list

4. use if condition to know if number is even

5. print number if it is even

6. increment num

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