1
GATE CSE 2020
Numerical
+1
-0.33
Consider the following grammar.

S $$ \to $$ aSB| d
B $$ \to $$ b

The number of reduction steps taken by a bottom-up parser while accepting the string aaadbbb is _______.
Your input ____
2
GATE CSE 2019
Numerical
+1
-0.33
Consider the grammar given below:

S → Aa

A → BD

B → b | ε

D → d | ε

Let a, b, d, and $ be indexed as follows: GATE CSE 2019 Compiler Design - Parsing Question 13 English
Compute the FOLLOW set of the non-terminal B and write the index values for the symbols in the FOLLOW set in the descending order. (For example, if the FOLLOW set is {a, b, d, $}, then the answer should be 3210)
Your input ____
3
GATE CSE 2019
MCQ (Single Correct Answer)
+1
-0.33
Which one of the following kinds of derivation is used by LR parsers?
A
Rightmost
B
Leftmost in reverse
C
Rightmost in reverse
D
Leftmost
4
GATE CSE 2016 Set 2
MCQ (Single Correct Answer)
+1
-0.3
Match the following:

GROUP - 1 GROUP - 2
(P) Lexical analysis (i) Leftmost derivation
(Q) Top down parsing (ii) Type checking
(R) Semantic analysis (iii) Regular expressions
(S) Runtime environments (iv) Activation records

A
$$P \leftrightarrow i,\,\,Q \leftrightarrow ii,\,\,R \leftrightarrow iv,\,\,S \leftrightarrow iii$$
B
$$P \leftrightarrow iii,\,\,Q \leftrightarrow i,\,\,R \leftrightarrow ii,\,\,S \leftrightarrow iv$$
C
$$P \leftrightarrow ii,\,\,Q \leftrightarrow iii,\,\,R \leftrightarrow i,\,\,S \leftrightarrow iv$$
D
$$P \leftrightarrow iv,\,\,Q \leftrightarrow i,\,\,R \leftrightarrow ii,\,\,S \leftrightarrow iii$$
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