LEXICAL ANALYSIS
REGULAR EXPRESSIONS AND FINITE AUTOMATA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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S
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Beginning and ending in different letters
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Beginning and ending in same letter
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Having even-even language
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none
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Explanation:
Detailed explanation-1: -A language generated by a CFG is a context-free language (CFL).
Detailed explanation-2: -S is the start symbol. In CFG, the start symbol is used to derive the string. You can derive the string by repeatedly replacing a non-terminal by the right hand side of the production, until all non-terminal have been replaced by terminal symbols.
Detailed explanation-3: -In formal language theory, a context-free language (CFL) is a language generated by a context-free grammar (CFG). Context-free languages have many applications in programming languages, in particular, most arithmetic expressions are generated by context-free grammars.
Detailed explanation-4: -Production rule (P): S → 0S | 1S. S →
There is 1 question to complete.