Q. In some programming languages, an identifier is permitted to be a letter followed by any number of letters or digits. If L and D denotes the set of letters and digit respectively. Which of the following expression defines an identifier?

(A) (L + D) *
(B) (L.D) *
(C) L(L + D) *
(D) L(L.D) *

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✅ Correct Answer: (C) L(L + D) *

Published by Mr. Dubey ⭐ 111.54K Points at 19-Sep-2023 08:45 pm in Theory of Computation and Compiler Design

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