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8. (30pts) Give context-free grammars for the following language over {0,1} : a. {w the length of w is odd } b. {ww contains the

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8. (30pts) Give context-free grammars for the following language over {0,1} : a. {w the length of w is odd } b. {ww contains the substring 011} c. The complement of the language {0n1n:n>=0} 9. (20pts) What is ambiguity? Give an example of a grammar that generates a string ambiguously. Show the parse tree for this example

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