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Give regular expressions for the languages given below over the alphabet E = {a,b, c}. (a) The set of all words of odd length. (b) The set of all words which do not have length 1. (c) The set of all words of even length, where every second symbol is a b. (d) The set of all words which start with a or c, or contain at least one b otherwise (or satisfy both conditions). (Note: When writing down your regular expressions, use only the notation used in the definition of regular expression from the lecture. (Do not use operators of other variants of regular expressions that you might know about, in particular do not use an operator + with the meaning "1 or more repetitions".))

Give regular expressions for the languages given below over the alphabet E = {a,b, c}. (a) The set of all words of odd length. (b) The set of all words which do not have length 1. (c) The set of all words of even length, where every second symbol is a b. (d) The set of all words which start with a or c, or contain at least one b otherwise (or satisfy both conditions). (Note: When writing down your regular expressions, use only the notation used in the definition of regular expression from the lecture. (Do not use operators of other variants of regular expressions that you might know about, in particular do not use an operator + with the meaning "1 or more repetitions".))

Computer Networking: A Top-Down Approach (7th Edition)
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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Give regular expressions for the languages given below over the alphabet E = {a, b, c}. (a) The set of all words of odd length. (b) The set of all words which do not have length 1. (c) The set of all words of even length, where every second symbol is a b. (d) The set of all words which start with a or c, or contain at least one b otherwise (or satisfy both conditions). (Note: When writing down your regular expressions, use only the notation used in the definition of regular expression from the lecture. (Do not use operators of other variants of regular expressions that you might know about, in particular do not use an operator + with the meaning "1 or more repetitions".))
Transcribed Image Text:Give regular expressions for the languages given below over the alphabet E = {a, b, c}. (a) The set of all words of odd length. (b) The set of all words which do not have length 1. (c) The set of all words of even length, where every second symbol is a b. (d) The set of all words which start with a or c, or contain at least one b otherwise (or satisfy both conditions). (Note: When writing down your regular expressions, use only the notation used in the definition of regular expression from the lecture. (Do not use operators of other variants of regular expressions that you might know about, in particular do not use an operator + with the meaning "1 or more repetitions".))
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