 Nested stack automaton (source code)

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= Nested stack automaton
{wiki=Nested_stack_automaton}

A **nested stack automaton (NSA)** is a computational model that extends the capabilities of traditional pushdown automata (PDAs) by incorporating multiple stacks with a nested structure. While a standard PDA uses a single stack to manage a potentially infinite string of input symbols, a nested stack automaton can have a hierarchy of stacks that allows for more complex operations and relationships between the stacks.

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