C How to Program (8th Edition)
8th Edition
ISBN: 9780133976892
Author: Paul J. Deitel, Harvey Deitel
Publisher: PEARSON
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Textbook Question
Chapter 7, Problem 7.30E
(Calculating Circle Circumference, Circle Area or Sphere Volume Using Function Pointers) Using the techniques you learned in Fig. 7.28 1, create a text-based, menu-driven
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(Python matplotlib or seaborn)
CPU Usage
We have the hourly average CPU usage for a worker's computer over the course of a week. Each row of data represents a day of the week starting with Monday. Each column of data is an hour in the day starting with 0 being midnight.
Create a chart that shows the CPU usage over the week. You should be able to answer the following questions using the chart:
When does the worker typically take lunch?
Did the worker do work on the weekend?
On which weekday did the worker start working on their computer at the latest hour?
cpu_usage = [
[2, 2, 4, 2, 4, 1, 1, 4, 4, 12, 22, 23,
45, 9, 33, 56, 23, 40, 21, 6, 6, 2, 2, 3], # Monday
[1, 2, 3, 2, 3, 2, 3, 2, 7, 22, 45, 44,
33, 9, 23, 19, 33, 56, 12, 2, 3, 1, 2, 2], # Tuesday
[2, 3, 1, 2, 4, 4, 2, 2, 1, 2, 5, 31,
54, 7, 6, 34, 68, 34, 49, 6, 6, 2, 2, 3], # Wednesday
[1, 2, 3, 2, 4, 1, 2, 4, 1, 17, 24, 18,
41, 3, 44, 42, 12, 36, 41, 2, 2, 4, 2, 4], # Thursday
[4, 1, 2, 2, 3, 2, 5, 1, 2, 12, 33, 27,
43, 8,…
Q2) (Perfect Numbers) An integer number is said to be a perfect number if its factors,
including 1 (but not the number itself), sum to the number. For example, 6 is a perfect
number because 6 = 1 + 2 + 3. Write a function perfect that determines if parameter number
is a perfect number. Use this function in a program that determines and prints all the perfect
numbers between 1 and 1000. Print the factors of each perfect number to confirm that the
number is indeed perfect. Challenge the power of your computer by testing numbers much
larger than 1000.
1) In mathematics, a factorial of a number is calculated by multiplying that number by all of the successive values less than it, stopping at 1. For example, factorial of 4 is written 4! and calculated as:
4! = 4 * 3 * 2 * 1 = 24
2) Write a program consisting of two functions (plus the main function). The first function should read in a number and then return this value back to the main function. This value should then be passed as a parameter (by value) into the second function which calculates and displays the factorial. Note: validate the input value (in the first function) to be greater than 1.
3) Improve your program from question 2, by changing the second function (that calculates the factorial) so that the result is returned to the main function instead of being printed where it is calculated. A new display function should be created and called from the main function that displays the calculated value.
4) Write a program that reads in two numbers and stores them into two…
Chapter 7 Solutions
C How to Program (8th Edition)
Ch. 7 - Answer each of the following: The _____ operator...Ch. 7 - Prob. 7.10ECh. 7 - Do each of the following: Write the function...Ch. 7 - (Simulation: The Tortoise and the Hare) In this...Ch. 7 - (Card Shuffling and Dealing Modification) Modify...Ch. 7 - What does this program do, assuming that the user...Ch. 7 - What does this program do?Ch. 7 - Find the error in each of the following program...Ch. 7 - (Maze Traversal) The following grid is a...Ch. 7 - Prob. 7.23E
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