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Peter Linz Edition 4 Exercise 7.1 Question 4.h(Page No. 183)
Vishal Goel
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Theory of Computation
Apr 30, 2017
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Naveen Kumar 3
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Construct npda for the following languages on $∑ =$ {$a,b,c$}
$L =$ { $w : n_a(w) = 2*n_b(w)$ }
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Vishal Goel
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1) L={a^2n b^n }
Ram Swaroop
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Dec 19, 2018
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Veenit
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This would not work as the examples taken assume that 'b's occur after 'a's.
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why you have considered a^2nb^n?
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Peter Linz Edition 4 Exercise 7.1 Question 9 (Page No. 183)
Is it possible to find a dfa that accepts the same language as the pda $M= (${$q_0,q_1$},{$a,b$},{$z$},$\delta,q_0,z,${$q_1$}), with $\delta(q_0,a,z)=${$(q_1,z)$}, $\delta(q_0,b,z)=${$(q_0,z)$}, $\delta(q_1,a,z)=${$(q_1,z)$}, $\delta(q_1,b,z)=${$(q_0,z)$} ?
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Peter Linz Edition 4 Exercise 7.1 Question 8 (Page No. 183)
Find an npda for the language $L =$ {$ab (ab)^n b (ba)^n : n ≥ 0$}.
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Peter Linz Edition 4 Exercise 7.1 Question 7 (Page No. 183)
Find an npda for the concatenation of $L (a^*)$ and the language in Exercise 6.
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Peter Linz Edition 4 Exercise 7.1 Question 6 (Page No. 183)
Find an npda on $Σ =$ {$a, b, c$} that accepts the language $L=${$w_1cw_2:w_1,w_2∈$ {$a,b$}$^*,w_1\neq w_2^R$}.
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