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Trie Interview Questions

12 Trie problems asked across FAANG and top tech companies. Approach hints, optimal solutions, and related problems.

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Trie 12
TrieClear all
139.Word Break
Dynamic ProgrammingHash TableTrie
Medium+5▶ Mock
Implement Trie (Prefix Tree)
TrieDesignString
Medium+2▶ Mock
Design Add and Search Words Data Structure
TrieDepth-First SearchDesign
Medium+1▶ Mock
14.Longest Common Prefix
ArrayStringTrie
Easy+1▶ Mock
3043.Find the Length of the Longest Common Prefix
ArrayHash TableString
Medium▶ Mock
588.Design In-Memory File System
Hash TableStringDesign
Hard▶ Mock
692.Top K Frequent Words
ArrayHash TableString
Medium▶ Mock
140.Word Break II
ArrayHash TableString
Hard▶ Mock
Design Add and Search Words Data Structure
StringDepth-First SearchDesign
Medium▶ Mock
Word Search II
ArrayStringBacktracking
Hard+1▶ Mock
642.Design Search Autocomplete System
StringDepth-First SearchDesign
Hard▶ Mock
3076.Shortest Uncommon Substring in an Array
ArrayHash TableString
Medium▶ Mock

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