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Module 2: Context-free languages and pushdown automata

20227m

Design a pushdown automata to accept the following language by empty stack: $\{ 0^n 1^n / n \ge 1 \}$ .

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PreviousBegin with the grammar: S \to ASB / \epsilon A \to aAS / a B \to SbS / A / bb (i) Eliminate \epsilon-productions. (ii) Eliminate unit productions in the resulting grammar. (iii) Eliminate any useless symbol in the resulting grammar. (iv) Put the resulting grammar into CNF.NextDefine deterministic pushdown automata. Explain with an example.