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Mr. Dubey • 100.69K Points
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Q. Which of the following grammar rules violate the requirements of an operator grammar ? P, Q, R are nonterminals, and r, s, t are terminals.
1. P → Q R
2. P → Q s R
3. P → ε
4. P → Q t R r

  • (A) 1 only
  • (B) 1 and 3 only
  • (C) 2 and 3 only
  • (D) 3 and 4 only
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