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Final Exam: Principles of Programming Languages
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Final Exam: Principles of Programming Languages https://asuce.instructure.com/courses/1344/quizzes/17553?module_item_id=119038 2/20 digit = 4 | 5 | 6 | 7 | 9 Consider the regular expression R = (LE ... TTER | digit | !) • (letter • digit) • (letter | digit). Which of the following is correct (more than one choice or no choice can be correct)? 1 * !5aA ∈ L(R1) ?55aA ∈ L(R1 ) 555aA ∈ L(R1 ) Correct! Correct! None of the above Question 3 1 / 1 pts Consider the regular expressions: R = ( a | b )* ( 0*1* ) ( a | b )* R = ( a | b ) ( 0*1* )* ( a | b ) Which of the following is true? 1 2 a0a ∈ L(R1) and ab01a ∈ L(R2) Correct! Correct! a0a ∈ L(R1) and ab01a ∉ L(R2) a0a ∉ L(R1) and ab01a ∈ L(R2) a0a ∉ L(R1) and ab01a ∉ L(R2) Question 4 0.33 / 1 pts letter = a | b | c | d LETTER = A | B | C | D digit = 4 | 5 | 6 | 7 | 9 Consider the regular expression R = (digit | ? | !) • (letter • digit ) • (LETTER | letter). Which of the following is correct (more than one choice or no choice can be correct)? [Show More]
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