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Question

Given a grammar in GNF and a derivable string in the grammar with the length n, any ___________will halt at depth n.

a.

top-down parser

b.

bottom-up parser

c.

multitape turing machine

d.

none of the mentioned

Posted under Context Free Languages Formal Languages and Automata Theory

Answer: (a).top-down parser

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Q. Given a grammar in GNF and a derivable string in the grammar with the length n, any ___________will halt at depth n.
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