Produce a context-free grammar (CFG) for each of the following lan- guages, assuming Σ = {0,1}: (a) {w |w starts and ends with different symbols} (b) {w |the length of w is an integer multiple of 3} (c) {wwR| i.e., a word followed by that word reversed}

Database System Concepts
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ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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Chapter1: Introduction
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Produce a context-free grammar (CFG) for each of the following lan-
guages, assuming Σ = {0,1}:
(a) {w |w starts and ends with different symbols}
(b) {w |the length of w is an integer multiple of 3}
(c) {wwR| i.e., a word followed by that word reversed}

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