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CISC 603 M7 HW Pushdown Automata Provide solutions to the following exercises. Solutions should be in the form of a hand-drawn transition graph (you may instead use a software tool like the Finite State Machine Designer). Note: Text descriptions and ASCII images will not be accepted. Linz Section 7.1 exercises 1, 2, 3a-c, 7 1. Find a pda that accepts the language $L = \{a^nb^{2n} : n \ge 0\}$. 2. Show the sequence of instantaneous descriptions for the acceptance of aabbbb by the pda in Exercise 1. 3. Construct npda's that accept the following regular languages: (a) $L_1 = L(aaa^bab)$. (b) $L_2 = L(aab^aba^*)$. (c) The union of $L_1$ and $L_2$. 7. Construct an npda that accepts the language $L = \{a^nb^m : n \ge 0, n \ne m\}$.

          CISC 603 M7 HW
Pushdown Automata
Provide solutions to the following exercises. Solutions should be in the form of a hand-drawn transition
graph (you may instead use a software tool like the Finite State Machine Designer). Note: Text
descriptions and ASCII images will not be accepted.
Linz Section 7.1 exercises 1, 2, 3a-c, 7
1. Find a pda that accepts the language $L = \{a^nb^{2n} : n \ge 0\}$.
2. Show the sequence of instantaneous descriptions for the acceptance of aabbbb
by the pda in Exercise 1.
3. Construct npda's that accept the following regular languages:
(a) $L_1 = L(aaa^*bab)$.
(b) $L_2 = L(aab^*aba^*)$.
(c) The union of $L_1$ and $L_2$.
7. Construct an npda that accepts the language $L = \{a^nb^m : n \ge 0, n \ne m\}$.

$CISC 603 M7 HW Pushdown Automata Provide solutions to the following exercises. Solutions should be in the form of a hand-drawn transition graph (you may instead use a software tool like the Finite State Machine Designer). Note: Text descriptions and ASCII images will not be accepted. Linz Section 7.1 exercises 1, 2, 3a-c, 7 1. Find a pda that accepts the language L = {a^nb^2n : n ≥ 0}. 2. Show the sequence of instantaneous descriptions for the acceptance of aabbbb by the pda in Exercise 1. 3. Construct npda's that accept the following regular languages: (a) L1 = L(aaa^*bab). (b) L2 = L(aab^*aba^*). (c) The union of L1 and L2. 7. Construct an npda that accepts the language L = {a^nb^m : n ≥ 0, n m}.$

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