Question

BNF grammar

Rewrite the grammar below to make it unambiguous.

Rewrite the grammar below to make it unambiguous. (2 marks)

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Answer #1

The rue <A> -> 0<A>1 | 01 makes the grammar ambiguous as we can't decide which rule to choose (also known as left factoring)

The grammar will be

<S> -> <A><S> | e

<A> -> <A>1 | 0 <B>

<B> -> <A>1 | 1

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BNF grammar Rewrite the grammar below to make it unambiguous. Rewrite the grammar below to make it unambiguous. (2 marks) Rewrite the grammar below to make it unambiguous. (2 marks)
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