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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Textbook Question
Chapter 10.8, Problem 10.3PP
Practice Problem 10.3 (solution page 915)
As before, suppose the disk file foobar.txt consists of the six ASCII characters foobar. Then what is the output of the following
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(c) Write a Haskell program that:
• Reads two files, called "input1.txt" and "input2.txt".
• Interleaves the lines of the two files.
• Writes the result to a file called "output12.txt" .
You may make use of any functions in the Reference (pp5-7).
(python)
10. Create a function based on the following information:
Your mission is to encrypt a secret message (text only, without special chars like "!", "&", "?" etc.) using Caesar cipher where each letter of input text is replaced by another that stands at a fixed distance. For example ("a b c", 3) == "d e f"
Input: A secret message as a string (lowercase letters only and white spaces) and number to move text
Output: The same string, but encrypted
Return: The same string, but encrypted
Problem 2
Mr. Sulaiman AlHarthy is having 13 shops for selling fruits all over Oman. The daily sales from all
the shops have been recorded in a text file called sales.txt. Mr. Sulaiman wants to know the total
sales after discarding baise from each shop's sales amount. [Hint: sales amount in any shop
always between 1 to 4 digits in OMR excluding basise]
Your program must be menu driven and robust. The following are the tasks to be programmed.
i)
Write a function to read the given text file sales.txt and extract OMRS after discarding the
digits after decimal point, including the decimal point and print the list of 13 sales
amount.
ii) Write a function to write the extracted sales data into another text file salesOMR.txt
iii) Write a function to read from salesOMR.txt file and print the sum of sales. Handle
FileNotFoundError exception in your code.
The sample content of sales.txt is as follows:
500.335233.1235.12311.2342313.510231.12356.12022.220540.125122.4329.450463.19834.767
Chapter 10 Solutions
Computer Systems: A Programmer's Perspective (3rd Edition)
Ch. 10.3 - Prob. 10.1PPCh. 10.8 - Practice Problem 10.2 (solution page 915) Suppose...Ch. 10.8 - Practice Problem 10.3 (solution page 915) As...Ch. 10.9 - Prob. 10.4PPCh. 10.9 - Practice Problem 10.5 (solution page 916) Assuming...Ch. 10 - Prob. 10.6HWCh. 10 - Prob. 10.7HWCh. 10 - Write a version of the statcheck program in Figure...Ch. 10 - Consider the following invocation of the...Ch. 10 - Prob. 10.10HW
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