What is the maximum number of reduce moves that can be taken by a bottom-up parser for a grammar with no epsilon- and unit-production (i.e., of type $\text{A} \rightarrow \epsilon$ and $\text{A} \rightarrow \text{a}$ ) to parse a string with $n$ tokens?

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Parsing

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How GATE tests Parsing

GATE heavily tests the Parsing stage of compiler design across both Top-Down (LL(1), recursive descent) and Bottom-Up (LR(0), SLR(1), LALR(1), CLR(1)) paradigms. Key evaluation areas include computing FIRST and FOLLOW sets to populate parsing tables, detecting conflicts (Shift-Reduce, Reduce-Reduce), classifying grammars within the parsing power hierarchy, and executing item-set closure/goto operations. In recent years, items have shifted toward exact item counting via GOTO/CLOSURE in NAT format, reverse engineering grammar rules from FIRST/FOLLOW sets, and multi-concept MSQ verification.

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Compiler Design · Parsing

Official IIT answer key · IIT Bombay · Audited Aug 2026

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GATE CSE 2013 Q9 · MCQ · 1 mark

What is the maximum number of reduce moves that can be taken by a bottom-up parser for a grammar with no epsilon- and unit-production (i.e., of type $\text{A} \rightarrow \epsilon$ and $\text{A} \rightarrow \text{a}$ ) to parse a string with $n$ tokens?

Select an option to check

Key concept

Parsing

Step-by-step verified solution

Examiner trap & misconception

Topic notes

How GATE tests Parsing

Full Parsing guide →

More on Parsing

All 23 questions on Parsing →

Independent practice explanation verified by the GateAI team. GATE is conducted by the IITs; question text follows the official paper.

What is the maximum number of reduce moves that can be taken by a bottom-up parser for a grammar with no epsilon- and unit-production (i.e., of type $\text{A} \rightarrow \epsilon$ and $\text{A} \rightarrow \text{a}$ ) to parse a string with $n$ tokens?

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What is the maximum number of reduce moves that can be taken by a bottom-up parser for a grammar with no epsilon- and unit-production (i.e., of type $\text{A} \rightarrow \epsilon$ and $\text{A} \rightarrow \text{a}$ ) to parse a string with $n$ tokens?

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What is the maximum number of reduce moves that can be taken by a bottom-up parser for a grammar with no epsilon- and unit-production (i.e., of type A→ϵ\text{A} \rightarrow \epsilonA→ϵ and A→a\text{A} \rightarrow \text{a}A→a) to parse a string with nnn tokens?

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What is the maximum number of reduce moves that can be taken by a bottom-up parser for a grammar with no epsilon- and unit-production (i.e., of type A→ϵ\text{A} \rightarrow \epsilonA→ϵ and A→a\text{A} \rightarrow \text{a}A→a) to parse a string with nnn tokens?

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What is the maximum number of reduce moves that can be taken by a bottom-up parser for a grammar with no epsilon- and unit-production (i.e., of type $\text{A} \rightarrow \epsilon$ and $\text{A} \rightarrow \text{a}$ ) to parse a string with $n$ tokens?

What is the maximum number of reduce moves that can be taken by a bottom-up parser for a grammar with no epsilon- and unit-production (i.e., of type $\text{A} \rightarrow \epsilon$ and $\text{A} \rightarrow \text{a}$ ) to parse a string with $n$ tokens?