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Which of the following statements are TRUE?
I. There exist parsing algorithms for some programming languages whose complexities are less than O(n3).
II. A programming language which allows recursion can be implemented with static storage allocation.
III. No L-attributed definition can be evaluated in The framework of bottom-up parsing.
IV. Code improving transformations can be performed at both source language and intermediate code level.
  • a)
    I and II
  • b)
    I and IV
  • c)
    III and IV
  • d)
    I, III and IV
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Which of the following statements are TRUE?I. There exist parsing algo...
II is false, in recursion, compiler cannot determine the space needed for recursive calls. III is false.
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Which of the following statements are TRUE?I. There exist parsing algo...
Parsing Algorithms and Complexity

- Statement I is true
- There exist parsing algorithms such as Earley's algorithm that have a complexity of O(n^3) or less for some programming languages.

Recursion and Static Storage Allocation

- Statement II is true
- A programming language that allows recursion can be implemented with static storage allocation by using a fixed amount of memory for the call stack.

L-Attributed Definition and Bottom-Up Parsing

- Statement III is false
- L-attributed definitions can be evaluated in the framework of bottom-up parsing, but it requires additional steps such as computing the attributes bottom-up after the parse tree has been constructed.

Code Improving Transformations at Source and Intermediate Code Level

- Statement IV is true
- Code improving transformations can be performed at both the source language and intermediate code level to optimize the code for execution. Examples include constant folding, loop unrolling, and dead code elimination.

Overall, the correct answer is option B - I and IV are true.
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Which of the following statements are TRUE?I. There exist parsing algorithms for some programming languages whose complexities are less than O(n3).II. A programming language which allows recursion can be implemented with static storage allocation.III. No L-attributed definition can be evaluated in The framework of bottom-up parsing.IV. Code improving transformations can be performed at both source language and intermediate code level.a)I and IIb)I and IVc)III and IVd)I, III and IVCorrect answer is option 'B'. Can you explain this answer?
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