How would you design a PDA (Push Down Automata) to recognize the language of binary strings that end with a different symbol than they start with? This can be a description or a diagrammatic state machine
2026-03-29 12:30:13.1774787413
How would you design a PDA to recognize the language of binary strings that end with a different symbol than they start with?
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Elaborating on Parcly Taxel's comment, your language is $0\{0,1\}^*1 \cup 1\{0,1\}^*0$ and hence is regular. You should be able to find the minimal deterministic automaton of this language. Hint: you need 5 states.