E. Given the statement m = re.search(my_regex, my_str),what should my_regex be such that m !=None if my_str is either of the following two strings:'123-456-7890''421.124.1513'and m ==None when my_stris one of the following three strings:'124-243-25152''1231.515.3534"'1234567890'[ Select ]„P\P\P\P\(-JP\P\P\[-IP\P\PW A.$P\P\P\P\[ -JP\P\P\[-]p\p\P\vr(\d\d\d[-]}(2}\d\d\d\d'my_regex

Answer: Python Source Code(m != None): import re my_str = '123-456-7890'# my_str =…

Answered: E. Given the statement m =…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Complete the function ratio_similarity, which computes the ratio of "similarity" between two non-empty strings. The ratio is computed as follows: 2 (the number of matches of characters) / (total number of characters in both strings) The matches are determined in pairwise fashion. For example, consider the strings abcdef and abdce. The three characters at indexes 0, 1 and 4 match. Therefore, the similarity ratio is 2 * 3/(6 + 5) = 0.5454 .... Examples: Function Call string_similarity('abcdef', 'abdce') string_similarity('dragon', 'flagon') string_similarity('stony', 'stony') string_similarity('Stony Brook University', 'WolfieNet Secure') string_similarity('yabba dabba doo', 'bippity boppity boo') string_similarity('Wolfie the Seawolf', "What's...a Seawolf?") [ ] Return Value 3 4 5 # Test cases 6 print (string_similarity('abcdef', 'abdce')) 7 print (string_similarity('dragon' 1 'flagon')) 'stony')) 0.5454545454545454 0.6666666666666666 1.0 0.0 0.058823529411764705 0.4864864864864865 1…
def sum_string(string: str) -> int:"""Given a string <string>, return the sum of this string, as computed by theformula given below: To compute the sum of a string as defined by this function, we add everyodd positioned digit, and subtract every even positioned digit. For example,if we had an input of "54321", we would add 5, subtract 4, add 3, subtract2, and add 1, bringing us to a total of 3. In other words, you would add thefirst digit, subtract the second digit, and keep alternating until you reachthe end of the string. If the string is empty, then the sum is 0. Note: since we give the input as a string, you will have to do some typeconversion in order to solve this problem. Precondition: <string> will only contain the characters 0-9."""pass " please do this on python and don't use any import functions"
Pls help ASAP.
Question 12 What is the label to reach the commands to invoke the Operating System O/S? Question 13 What register contains the value for conditional statement for execution of the loop?
A2 = {w ∈ {1,0}* |w contains an even number of 0s and each 0 is followed by at least one 111}. Provide regular expression. explain in detail include possible strings and NFA
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Write a python function count_matches that, given two strings, counts the number of positions at which the characters are the same. For example, count_matches('conflate', 'banana') returns 2, conflate banana ^ ^ since the n's match at index 1 and the a's match at index 5. The strings to not need to be the same length. The count_matches function does not read input or print output.
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Write a function named encode_string(sentence) that takes a string value as its input and returns an encoded string, where each character of the input string is replaced by its ASCII code plus 3 values. Whitespace characters should not be encoded. For example, if the function was passed the input string: Hello World then it should return: Khoor Zruog For example: Test sentence "Hello World" print (encode_string(sentence)) Result Khoor Zruog

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