midBinary Tree
Find Maximum Path Sum in a BT
Updated Apr 28, 2026
Short answer
Track max gain from subtrees at each node.
Deep explanation
Mid-level dive into Find Maximum Path Sum in a BT. 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?