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Assume that the SLR parser for a grammar G has n1 states and the LALR parser for G has n2 states.

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Assume that the SLR parser for a grammar G has n1 states and the LALR parser for G has n2 states.

(a) n1 is necessarily less than n2

(b) n1 is necessarily equal to n2

(c) n1 is necessarily greater than n2

(d) none of the mentioned

I got this question in unit test.

The origin of the question is Top-Down Parsing topic in division Topdown Parsing of Compiler

1 Answer

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Best answer
Right choice is (b) n1 is necessarily equal to n2

Best explanation: SLR parser has less range of context free languages than LALR but still both n1 & n2 are same for SLR & LALR respectively.

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