midTrie
Finding the Longest Common Prefix (LCP)
Updated Apr 28, 2026
Short answer
Traverse the Trie from root until a node has more than one child or is marked as end of word.
Deep explanation
Mid-level analysis of Finding the Longest Common Prefix (LCP). Focuses on algorithmic variations and efficiency trade-offs in real applications.
Real-world example
Search engine search bars.
Common mistakes
- Searching for a prefix and returning the entire Trie instead of just child words.
Follow-up questions
- How to limit autocomplete results?