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Which of the following statements is false?
  • a)
    An unambiguous grammar has same leftmost and rightmost derivation.
  • b)
    An LL( 1) parser is a top-down parser.
  • c)
    LALR is more powerful than SLR.
  • d)
    An ambiguous grammar can never be LR(k) for any k.
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Which of the following statements is false?a)An unambiguous grammar ha...
An ambiguous grammar have more than one leftmost or rightmost derivation tree.
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Most Upvoted Answer
Which of the following statements is false?a)An unambiguous grammar ha...
Explanation:
An unambiguous grammar is a grammar in which each string in the language generated has only one parse tree.

a) False: An unambiguous grammar may have different leftmost and rightmost derivations, but they will still result in the same parse tree.

b) True: An LL(1) parser is a top-down parser that reads the input from left to right and constructs a leftmost derivation of the input string.

c) True: LALR (Look-Ahead LR) is more powerful than SLR (Simple LR) because it uses more look-ahead symbols to make parsing decisions.

d) True: An ambiguous grammar can never be LR(k) for any k, as LR parsers require unambiguous grammars to construct a parse tree.

Therefore, the false statement is (a) An unambiguous grammar has the same leftmost and rightmost derivation.
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Which of the following statements is false?a)An unambiguous grammar has same leftmost and rightmost derivation.b)An LL( 1) parser is a top-down parser.c)LALR is more powerful than SLR.d)An ambiguous grammar can never be LR(k) for any k.Correct answer is option 'A'. Can you explain this answer?
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