PDA for a,bnanbm in theory of automata

PDA for ambnanbm in theory of automata

In this PDA, first a and last b must be equal. Similarly, second b and third a must be equal. 

Accepted strings

Following strings must be accepted by PDA;

abab, abbaab, aababb,…..etc.

Rejected strings

Following strings must be rejected by PDA;

ababb, aabab, abaab, …….etc.

PDA solution

List of All examples of Push Down Automata (PDA): Click Here 

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