GATE | GATE CS 2012 | Question 12

What is the complement of the language accepted by the NFA shown below?

gatecs2012automata
(A) A
(B) B
(C) C
(D) D


Answer: (B)

Explanation: The given alphabet contains only one symbol {a} and the given NFA accepts all strings with any number of occurrences of ‘a’. In other words, the NFA accepts a+. Therefore complement of the language accepted by automata is empty string.

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