midTrees
Mid-Level Tree Question 5: Balancing and Searching
Updated Apr 28, 2026
Short answer
Balanced trees like AVL or Red-Black ensure O(log n) operations.
Deep explanation
Discuss rotations, balance factors, and the importance of keeping the tree height logarithmic to avoid O(n) worst-case scenarios found in skewed BSTs.
Real-world example
Database indexing (B-Trees).
Common mistakes
- Forgetting to update height during rotations in AVL trees.
Follow-up questions
- How does a left rotation work?
- Difference between AVL and Red-Black trees?