Computer Science · Theory of Computation
Which regular expression corresponds to a Deterministic Finite Automaton (DFA) accepting all strings over {a, b} starting with 'a' or starting with 'b' followed by 'a' or 'bab' repeatedly?
- 1(a ∪ b(a ∪ bab))✓
- 2(a ∪ b(a ∪ bab))
- 3(a ∪ b(a ∪ bab))
- 4(a ∪ b(a ∪ bab))
Correct answer
(a ∪ b(a ∪ bab))
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