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Write regular expressions for these languages: a) Any string over the alphabet {0,1} that contains the pattern 0110 OR the pattern 1001. b) Any string over the alphabet {0,1} that contains the pattern 0110 AND the pattern 1001. c) Any string over the alphabet {x,y,z} that contains an even number of y's. d) Any string over the alphabet {t,u,v} that has at least 4 characters, and the third character is not a u. e) Any string over the alphabet {a,b,c} that begins with bc and ends with ca.

Write regular expressions for these languages: a) Any string over the alphabet {0,1} that contains the pattern 0110 OR the pattern 1001. b) Any string over the alphabet {0,1} that contains the pattern 0110 AND the pattern 1001. c) Any string over the alphabet {x,y,z} that contains an even number of y's. d) Any string over the alphabet {t,u,v} that has at least 4 characters, and the third character is not a u. e) Any string over the alphabet {a,b,c} that begins with bc and ends with ca.

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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Write regular expressions for these languages: a) Any string over the alphabet {0,1} that contains the pattern 0110 OR the pattern 1001. b) Any string over the alphabet {0,1} that contains the pattern 0110 AND the pattern 1001. c) Any string over the alphabet {x,y,z} that contains an even number of y's. d) Any string over the alphabet {t,u,v} that has at least 4 characters, and the third character is not a u. e) Any string over the alphabet {a,b,c} that begins with bc and ends with ca.
Transcribed Image Text:Write regular expressions for these languages: a) Any string over the alphabet {0,1} that contains the pattern 0110 OR the pattern 1001. b) Any string over the alphabet {0,1} that contains the pattern 0110 AND the pattern 1001. c) Any string over the alphabet {x,y,z} that contains an even number of y's. d) Any string over the alphabet {t,u,v} that has at least 4 characters, and the third character is not a u. e) Any string over the alphabet {a,b,c} that begins with bc and ends with ca.
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