Question:

Consider the following two sets: \begin{center} \begin{tabular}{|c|l|c|l|} \hline Set X & & Set Y &
\hline P. & Lexical Analyzer & 1. & Abstract Syntax Tree
Q. & Syntax Analyzer & 2. & Token
R. & Intermediate Code Generator & 3. & Parse Tree
S. & Code Optimizer & 4. & Constant Folding
\hline \end{tabular} \end{center} Which one of the following options is the CORRECT match from Set X to Set Y?

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Understand the role of each compiler phase and its output to accurately match components.
Updated On: Jan 23, 2025
  • \(P - 4; \, Q - 1; \, R - 3; \, S - 2\)
  • \(P - 2; \, Q - 3; \, R - 1; \, S - 4\)
  • \(P - 2; \, Q - 1; \, R - 3; \, S - 4\)
  • \(P - 4; \, Q - 3; \, R - 2; \, S - 1\)
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The Correct Option is B

Solution and Explanation

To correctly match Set X with Set Y, we analyze each component:
P. Lexical Analyzer: The lexical analyzer is responsible for generating tokens from the input stream. Hence, \(P - 2\).
Q. Syntax Analyzer: The syntax analyzer generates a parse tree by analyzing the syntactical structure of tokens. Hence, \(Q - 3\).
R. Intermediate Code Generator: The intermediate code generator creates an abstract syntax tree (AST) as part of its processing. Hence, \(R - 1\).
S. Code Optimizer: The code optimizer applies techniques like constant folding to optimize the intermediate code. Hence, \(S - 4\).
Correct match: \[ P - 2, \, Q - 3, \, R - 1, \, S - 4. \] Final Answer: \[ \boxed{\text{(B)}} \]
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