C++ How to Program (10th Edition)
10th Edition
ISBN: 9780134448237
Author: Paul J. Deitel, Harvey Deitel
Publisher: PEARSON
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Chapter 6, Problem 6.29E
(Prime Numbers) An integer is said to be prime if it's divisible by only 1 and itself. For ex_
ample, 2. 3, 5 and 7 are prime, but 4, 6, 8 and 9 are not.
a) Wright a function that determines whether a number is prime.
b) Use this function in a program that determines and prints all the prime numbers between 2 and 10.000. How many these numbers do you really have to test before being sure that you've found all the primes?
c)Initially, you might think that is the upper limit for which you must test to sec whether a number is prime. but you need only go as high as the square root of n. Why? Rewrite the program. and run it both ways. Estimate the performance improvement.
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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.
(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,…
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 6 Solutions
C++ How to Program (10th Edition)
Ch. 6 - Show the value of x after each of the following...Ch. 6 - (Parking Charges) A parking garage charges a...Ch. 6 - Prob. 6.13ECh. 6 - (Rounding Numbers) Function floor can be used to...Ch. 6 - Prob. 6.15ECh. 6 - (Random Numbers) Write statement that assign...Ch. 6 - (Random Numbers) Write a single statement that...Ch. 6 - Prob. 6.18ECh. 6 - Prob. 6.19ECh. 6 - Prob. 6.20E
Ch. 6 - Prob. 6.21ECh. 6 - Prob. 6.22ECh. 6 - Prob. 6.23ECh. 6 - (Separating Digits) Write program segments that...Ch. 6 - (Calculating Number of Seconds) Write a function...Ch. 6 - (Celsius and Fahrenheit Temperature) Implement the...Ch. 6 - (Find the Minimum) Write a program that inputs...Ch. 6 - Prob. 6.28ECh. 6 - (Prime Numbers) An integer is said to be prime if...Ch. 6 - Prob. 6.30ECh. 6 - Prob. 6.31ECh. 6 - (Quality Points for Numeric Grades) Write a...Ch. 6 - Prob. 6.33ECh. 6 - (Guess-the-Number Game) Write a program that plays...Ch. 6 - (Guess-the-Number Game Modification) Modify the...Ch. 6 - Prob. 6.36ECh. 6 - Prob. 6.37ECh. 6 - Prob. 6.38ECh. 6 - Prob. 6.39ECh. 6 - Prob. 6.40ECh. 6 - Prob. 6.41ECh. 6 - Prob. 6.42ECh. 6 - Prob. 6.43ECh. 6 - Prob. 6.44ECh. 6 - (Math Library Functions) Write a program that...Ch. 6 - (Find the Error) Find the error in each of the...Ch. 6 - (Craps Game Modification) Modify the craps program...Ch. 6 - (Circle Area) Write a C++ program that prompts the...Ch. 6 - (pass-by-Value vs. Pass-by-Reference) Write a...Ch. 6 - (Unary Scope Resolution Operator) What’s the...Ch. 6 - (Function Templateminimum) Write a program that...Ch. 6 - Prob. 6.52ECh. 6 - (Find the Error) Determine whether the following...Ch. 6 - (C++ Random Numbers: Modified Craps Game) Modify...Ch. 6 - (C++ Scoped enum) Create a scoped enum named...Ch. 6 - (Function Prototype and Definitions) Explain the...Ch. 6 - Prob. 6.57MADCh. 6 - Prob. 6.58MADCh. 6 - (Computer-Assisted Instruction: Monitoring Student...Ch. 6 - (Computer-Assisted Instruction: Difficulty Levels)...Ch. 6 - (Computer-Assisted Instruction: Varying the Types...
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