Question: Show a context - free grammar ( non - regular ) for the following languages: ( 2 0 marks ) a . { w i

Show a context-free grammar (non-regular) for the following languages: (20 marks)
a.{win{a,b}**:#a(w)>#(b)(w)}.
b.{win{a,b,c}** : every 'c' is preceded by an 'a' and followed by a'b'.
Show a context - free grammar ( non - regular )

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