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## Consider the NPDA 〈Q = {q0, q1, q2}, Σ = {0, 1}, Γ = {0, 1, ⊥}, δ, q0, ⊥, F = {q2}〉 -gate-cse-2015

By:milan-ransingh

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## Answers

Answer: (B) Explanation: In q0 state for ‘1’, a ‘1’ is pushed and for a ‘0’ a ‘0’ is pushed. In q1 state, for a ‘0’ a ‘1’ is popped and for a ‘1’ a ‘0’ is popped. So, the given PDA is accepting all strings of of the form x0x’r or x1x’r or xx’r, where x’r is the reverse of the 1’s complement of x. The given string 101100 has 6 letters and we are given 5 letter strings. So, x0 is done, with x = 10110. So, x’r = (01001)r = 10010. Hence option B is correct.prajwalamv

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