# Trie

- [208 Implement Trie (Prefix Tree)](/oj-practices/chapter1/trie/208-implement-trie-prefix-tree.md)
- [211 Add and Search Word - Data structure design](/oj-practices/chapter1/trie/211-add-and-search-word-data-structure-design.md)
- [212     Word Search II](/oj-practices/chapter1/trie/212-word-search-ii.md)
- [336 Palindrome Pairs](/oj-practices/chapter1/trie/336-palindrome-pairs.md)
- [421 Maximum XOR of Two Numbers in an Array](/oj-practices/chapter1/trie/421-maximum-xor-of-two-numbers-in-an-array.md)
- [425     Word Squares](/oj-practices/chapter1/trie/425-word-squares.md)
- [472 Concatenated Words](/oj-practices/chapter1/trie/472-concatenated-words.md)
- [527 Word Abbreviation](/oj-practices/chapter1/trie/527-word-abbreviation.md)
- [588 Design In-Memory File System](/oj-practices/chapter1/trie/588-design-in-memory-file-system.md)
- [642 Design Search Autocomplete System](/oj-practices/chapter1/trie/642-design-search-autocomplete-system.md)
- [648 Replace Words](/oj-practices/chapter1/trie/648-replace-words.md)
- [676 Implement Magic Dictionary](/oj-practices/chapter1/trie/676-implement-magic-dictionary.md)
- [677 Map Sum Pairs](/oj-practices/chapter1/trie/677-map-sum-pairs.md)
- [692 Top K Frequent Words](/oj-practices/chapter1/trie/692-top-k-frequent-words.md)
- [720     Longest Word in Dictionary](/oj-practices/chapter1/trie/720-longest-word-in-dictionary.md)
- [745     Prefix and Suffix Search](/oj-practices/chapter1/trie/745-prefix-and-suffix-search.md)