Library/Memory automata/QA QA · Recursively enumerable enqueue then match @thethinkmachine·version 1·CC BY 4.0·added 28 Sept 2026 The textbook Queue Automaton example. Open in AutomataStudio More ▾ Open in the desktop app Download the .automaton file Source on GitHub q0q1acc The machine as drawn — 3 states, 2 transitions.