Let C = {wwR
Chapter , Problem 2.58(choose chapter or problem)
Let C = {wwR| w {0,1}}. Prove that C is not a DCFL. (Hint: Suppose that when some DPDA P is started in state q with symbol x on the top of its stack, P never pops its stack below x, no matter what input string P reads from that point on. In that case, the contents of Ps stack at that point cannot affect its subsequent behavior, so Ps subsequent behavior can depend only on q and x.)
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