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Which one of the following languages over the alphabet {0,1} is described by the regular expression: (0 + 1)*0(0 + 1)*0(0 + 1)*?
  • a)
    The set of all strings containing the substring 00
  • b)
    The set of all strings containing at most two 0's
  • c)
     The set of all strings containing at least two 0's
  • d)
    The set of all strings that begin and end with either 0 or 1
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Which one of the following languages over the alphabet {0,1} is descri...
Counter example for other choices:
(A) 1010 is accepted which doesn't contain 00
(B) 000 is accepted
(D) 01 is not accepted
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Most Upvoted Answer
Which one of the following languages over the alphabet {0,1} is descri...
Explanation:

The given regular expression is (0 1)*0(0 1)*0(0 1)*.

Let's break this down and understand what it means:

(0 1)* : This means any number of occurrences (including zero) of 0 and/or 1 can appear before the first 0.

0 : This means the first 0.

(0 1)* : This means any number of occurrences (including zero) of 0 and/or 1 can appear between the first and second 0.

0 : This means the second 0.

(0 1)* : This means any number of occurrences (including zero) of 0 and/or 1 can appear after the second 0.

Therefore, the language described by this regular expression consists of all strings that contain at least two 0s, which means the correct option is (c) "The set of all strings containing at least two 0s".

Here are some examples of strings that belong to this language:

- 0010
- 10001
- 010
- 11000

And here are some examples of strings that do not belong to this language:

- 0110 (contains only one 0)
- 101 (contains no 0s)
- 000 (contains more than two 0s)
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Community Answer
Which one of the following languages over the alphabet {0,1} is descri...
C
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Which one of the following languages over the alphabet {0,1} is described by the regular expression: (0 + 1)*0(0 + 1)*0(0 + 1)*?a)The set of all strings containing the substring 00b)The set of all strings containing at most two 0'sc)The set of all strings containing at least two 0'sd)The set of all strings that begin and end with either 0 or 1Correct answer is option 'C'. Can you explain this answer?
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Which one of the following languages over the alphabet {0,1} is described by the regular expression: (0 + 1)*0(0 + 1)*0(0 + 1)*?a)The set of all strings containing the substring 00b)The set of all strings containing at most two 0'sc)The set of all strings containing at least two 0'sd)The set of all strings that begin and end with either 0 or 1Correct answer is option 'C'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Which one of the following languages over the alphabet {0,1} is described by the regular expression: (0 + 1)*0(0 + 1)*0(0 + 1)*?a)The set of all strings containing the substring 00b)The set of all strings containing at most two 0'sc)The set of all strings containing at least two 0'sd)The set of all strings that begin and end with either 0 or 1Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following languages over the alphabet {0,1} is described by the regular expression: (0 + 1)*0(0 + 1)*0(0 + 1)*?a)The set of all strings containing the substring 00b)The set of all strings containing at most two 0'sc)The set of all strings containing at least two 0'sd)The set of all strings that begin and end with either 0 or 1Correct answer is option 'C'. Can you explain this answer?.
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