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Trie
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== Structure == A trie is composed of nodes, where each node represents a character in a key. Each node can have multiple children, one for each character that can follow the current character in the key. A boolean flag in each node indicates whether the node represents the end of a key. A trie can be seen as a deterministic finite automaton (DFA) where each state represents a prefix of the input strings and transitions between states represent characters.
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