juniorTrie
What is the time complexity of Trie insertion?
Updated Apr 28, 2026
Short answer
O(L), where L is the length of the string being inserted.
Deep explanation
Detailed theoretical explanation of What is the time complexity of Trie insertion?. A Trie (retrieval tree) stores keys in a path from root to leaf. It is highly efficient for prefix-based queries.
Real-world example
Dictionary apps or spell checkers.
Common mistakes
- Forgetting to mark the 'isEndOfWord' flag, resulting in failed searches for complete words.
Follow-up questions
- Can a Trie store integers?