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Question

The grammar ‘G1’

S ---> OSO| ISI | 0|1|∈

and the grammar  ‘G2’ is
S ---> as |asb| X,
X -----> Xa | a.

Which is the correct statement ?

a.

G1 is ambiguous, G2 is unambiguous

b.

G1 is unambiguous, G2 is ambiguous

c.

Both G1 and G2 are ambiguous

d.

Both G1 and G2 are unambiguous

Answer: (b).G1 is unambiguous, G2 is ambiguous

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Q. The grammar ‘G1’ S ---> OSO| ISI | 0|1|∈ and the grammar  ‘G2’ is S ---> as |asb| X, X -----> Xa | a. Which is the correct statement ?

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