Gate CS-2006 Question Paper With Solutions

Q. 18 Consider the following translation scheme.

S → ER
R → *E{print(“*”);}R | ε
E → F + E {print(“+”);} | F
F → (S) | id {print(id.value);}

Here id is a token that represents an integer and id.value represents the corresponding integer value. For an input ‘2 * 3 + 4’, this translation scheme prints

(A) 2 * 3 + 4

(B) 2 * +3 4

(C) 2 3 * 4 +

(D) 2 3 4+*

Answer: (D)

Explanation: Gate CS-2006 Question Paper With Solutions

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