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Which statement is true?
  • a)
    LALR parser is most powerful and costly as compare to other parsers.
  • b)
    All CFG’s are LR and not all grammars are uniquely defined.
  • c)
    Every SLR grammar is unambiguous but not every unambiguous grammar is SLR.
  • d)
    LR(K) is the most general back tracking shift reduce parsing method.
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Which statement is true?a)LALR parser is most powerful and costly as c...
  • LALR is less powerful than CLR but more costly than any parser.
  • Every SLR grammar is unambigous but every unambigous grammar need not be SLR i.e. may be LALR but not SLR. 
  • LR(K) grammar never using backtracking.
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Most Upvoted Answer
Which statement is true?a)LALR parser is most powerful and costly as c...
Can be parsed using a LL(1) parser.c)A LR parser can handle a larger class of grammars than a LL parser.

c)A LR parser can handle a larger class of grammars than a LL parser.
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Which statement is true?a)LALR parser is most powerful and costly as compare to other parsers.b)All CFG’s are LR and not all grammars are uniquely defined.c)Every SLR grammar is unambiguous but not every unambiguous grammar is SLR.d)LR(K) is the most general back tracking shift reduce parsing method.Correct answer is option 'C'. Can you explain this answer?
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