Give context-free grammars generating the following
Chapter , Problem 2.6(choose chapter or problem)
Give context-free grammars generating the following languages. Aa. The set of strings over the alphabet {a,b} with more as than bs b. The complement of the language {anbn| n 0} Ac. {w#x| wR is a substring of x for w,x {0,1}} d. {x1#x2##xk| k 1, each xi {a,b}, and for some i and j, xi = xR j }
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