Question 1 (10%) Consider the following grammar S→D|DS D→0|1|2|3|4|5|6|7|8|9 (a) Write a left most derivation of...

Question

Question

Question 1 (10%) Consider the following grammar

S→D|DS

D→0|1|2|3|4|5|6|7|8|9

(a) Write a left most derivation of the string 7801.

(b) Write a right most derivation of the string 7801.

engineering Computer-Science

Answer 1

Answer #1

a)
S -> DS -> 7S -> 7DS -> 78S -> 78DS -> 780S -> 780D -> 7801

b)
S -> DS -> DDS -> DDDS -> DDDD -> DDD1 -> DD01 -> D801 -> 7801

Answer 2

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