midBinary Tree
Check if a Tree is Balanced (AVL condition)
Updated Apr 28, 2026
Short answer
Height difference of subtrees is <= 1.
Deep explanation
Mid-level dive into Check if a Tree is Balanced (AVL condition). Discussing recursion vs iteration and auxiliary space.
Real-world example
Router path optimization.
Common mistakes
- Ignoring the null case for leaf children.
Follow-up questions
- Time Complexity?