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Consider the following statements about the context free grammar
I. G is ambiguous
II. G produces all strings with equal number of a's and b's
III. G can be accepted by a deterministic PDA
Which combination below expresses all the true statements about ?
  • a)
    I only
  • b)
    I and III only
  • c)
    II and III only
  • d)
    I, II and III
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Consider the following statements about the context free grammarI. G i...
1.G is ambiguous. E.g. the string  has multiple derivation trees like
II. False.  does not produce all strings with equal no. of `s and `s. ( cannot be generated).
III. True. The given grammar G generates the language , which is Regular and therefore also DCFL. So, a DPDA can be designed for G .
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Consider the following statements about the context free grammarI. G is ambiguousII. G produces all strings with equal number of a's and b'sIII. G can be accepted by a deterministic PDAWhich combination below expresses all the true statements about ?a)I onlyb)I and III onlyc)II and III onlyd)I, II and IIICorrect answer is option 'B'. Can you explain this answer?
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