Stacks
7 min · Elixir examples
Last-in-first-out structure for matching brackets, undo logic, and monotonic scans.
Elixir · Stacks0/5 cleared
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A stack is like a pile of plates: you push on top and pop from the top. Elixir lists work great as a stack — put a new item on the head with [item | stack], and pattern match [top | rest] = stack to pop it.
Classic use: walk a string of brackets and push opens; on a close, pop and check they match.
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