Computer Systems: A Programmer's Perspective (3rd Edition)
3rd Edition
ISBN: 9780134092669
Author: Bryant, Randal E. Bryant, David R. O'Hallaron, David R., Randal E.; O'Hallaron, Bryant/O'hallaron
Publisher: PEARSON
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Chapter 8, Problem 8.18HW
Consider the following
Determine which of the following outputs are possible. Note; The atexit function takes a pointer to a function and adds it to a list of functions (initially empty) that will be called when the exit function is called.
- A. 112002
- B. 211020
- C. 102120
- D. 122001
- E. 100212
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//-In python-//
def compute_stats():"""Write a function compute_stats, such that given a string of grades as an input parameter,it calls the function get_new_grades (defined in theprevious question) and returns a tuple that containsthe average value of the initial grades andthe average value after running the get_new_grades function.""" pass
The code should aslo have if __name__ == "__main__" section.
Write and test the “digit” function:
Function Prototype: int digit(int n,int k)This function returns the kth digit of the positive integer n. For example, if n is the integer 29,415 that is entered by user , then the call digit(n,0) would return the digit 2, and the call digit(n,2) would returnthe digit 4. do this only by using functions and loops. arrays are not allowed.
example :Input: n = 29415 , k = 1 output: 9
Input: n = 2 , k = 1 output: index out of bound (return -1)
1. Square Flower
You can have the turtle draw an interesting flower like sha pe by drawing n squares.
Each n-square flower is drawn after turning the turtle by some number of degrees
between each square. (see Figure 1 for an example)
(a) Typel: A 5-square red flower.
(b) A 15-square blue flower.
Figure 1: Two types of n-square flowers
Using the following implementation of draw square() function write a function
na med draw flower() that takes a turtle, the number n of squares to draw, the
side length and a color as parameters and draws an n-square flower by repeating the
function draw square() n times. Test your code by drawing a yellow 21-square
flower with side length of 200.
def drav aqu ar e (aTurtle, sidelength):
f or i in range (4) :
aTurtle.forvard (side Length)
aTurtle. 1eft (90)
Chapter 8 Solutions
Computer Systems: A Programmer's Perspective (3rd Edition)
Ch. 8.2 - Prob. 8.1PPCh. 8.4 - Prob. 8.2PPCh. 8.4 - Prob. 8.3PPCh. 8.4 - Prob. 8.4PPCh. 8.4 - Practice Problem 8.5 (solution page 797) Write a...Ch. 8.4 - Practice Problem 8.6 (solution page 797) Write a...Ch. 8.5 - Practice Problem 8.7 (solution page 798) Write a...Ch. 8.5 - Prob. 8.8PPCh. 8 - Prob. 8.9HWCh. 8 - In this chapter, we have introduced some functions...
Ch. 8 - How many hello output lines does this program...Ch. 8 - How many "hello' output lines does this program...Ch. 8 - Prob. 8.13HWCh. 8 - How many hello output lines does this program...Ch. 8 - How many "hello lines does this program print?Ch. 8 - Prob. 8.16HWCh. 8 - Prob. 8.17HWCh. 8 - Consider the following program: Determine which of...Ch. 8 - How many lines of output does the following...Ch. 8 - Use execve to write a program called my1s whose...Ch. 8 - What are the possible output sequences from the...Ch. 8 - Write your own version of the Unix system function...Ch. 8 - One of your colleagues is thinking of using...Ch. 8 - Modify the program in Figure 8.18 so that the...Ch. 8 - Write a version of the fgets function, called...
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