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Consider the following Syntax Directed Translation Scheme (SDTS), with non-terminals {S, A} and terminals {a, b}}.
Using the above SDTS, the output printed by a bottom-up parser, for the input aab is
  • a)
    1 3 2
  • b)
    2 2 3
  • c)
    2 3 1
  • d)
    Syntax Error
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Consider the following Syntax Directed Translation Scheme (SDTS), with...
Bottom up parser builds the parse tree from bottom to up, i.e from the given string to the starting symbol. The given string is aab and starting symbol is S. so the process is to start from aab and reach S. =>aab ( given string) =>aSb (after reduction by S->a, and hence print 2) =>aA (after reduction by A->Sb, and hence print 3) =>S (after reduction by S->aA, and hence print 1) As we reach the starting symbol from the string, the string belongs to the language of the grammar. Another way to do the same thing is :- bottom up parser does the parsing by RMD in reverse. RMD is as follows: =>S => aA (hence, print 1) => aSb (hence, print 3) => aab (hence, print 2) If we take in Reverse it will print : 231
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Consider the following Syntax Directed Translation Scheme (SDTS), with non-terminals {S, A} and terminals {a, b}}.Using the above SDTS, the output printed by a bottom-up parser, for the inputaabisa)1 3 2b)2 2 3c)2 3 1d)Syntax ErrorCorrect answer is option 'C'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Consider the following Syntax Directed Translation Scheme (SDTS), with non-terminals {S, A} and terminals {a, b}}.Using the above SDTS, the output printed by a bottom-up parser, for the inputaabisa)1 3 2b)2 2 3c)2 3 1d)Syntax ErrorCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following Syntax Directed Translation Scheme (SDTS), with non-terminals {S, A} and terminals {a, b}}.Using the above SDTS, the output printed by a bottom-up parser, for the inputaabisa)1 3 2b)2 2 3c)2 3 1d)Syntax ErrorCorrect answer is option 'C'. Can you explain this answer?.
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