Trie Applications Resource

Autocomplete: Finding words with a given prefix
Spell checker: Finding similar words
Word games: Validating words, finding possible words
IP routing: Longest prefix matching
Text prediction: Suggesting next words

Trie Applications Resource - aloalgo

Tries shine in problems involving prefixes, word dictionaries, and pattern matching. Here are the most common applications.

Find all words that start with a given prefix.

Find all words from a dictionary that exist in a 2D grid. This combines trie with backtracking.

Replace each word in a sentence with its shortest prefix that exists in the dictionary.

Support searching with '.' as a wildcard matching any character.

Track how many words share each prefix.

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Trie Applications