Exam > Practice_Exam_1_CMPSC_461_SP23.pdf 1 Helpful Unhelpful Pennsylvania State University CMPSC 461


Problem 1 onstruct regular expressions for the below “English” statements. If you cannot construct one, explain why that may be the case. 1. Given, an alphabet, Σ = {a, b, c}, a string without b’s ends with c, a string without a’s ends with b and a string without c’s ends with a. 2. (Optional for practice) A 7 digit number plate which has 3 capital letters followed a capital letter or a ...[Show More]

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