Binary Trees - Traversal

Total Problems: 17
Completed: 17 (100%)

---

📚 Pattern Master Notes

Binary Trees - Traversal - Complete Guide

This comprehensive guide includes: - 🧠 Pattern recognition & problem-solving mindset - 🎯 Sub-patterns and variations - 🏆 Golden templates and code examples - ⚠️ Common pitfalls and debugging tips - 📊 Decision trees and quick reference tables

💡 Tip: Read the notes before starting problems to build intuition!

---

Progress by Difficulty

Difficulty	Total	Completed	Remaining	Percentage
🟢 Easy	8	8	0	100%
🟡 Medium	8	8	0	100%
🔴 Hard	1	1	0	100%

---

Problems

#	Problem	Difficulty	Status	Confidence
131	Same Tree	E	✅	HGH
132	Symmetric Tree	E	✅	HGH
133	Maximum Depth of Binary Tree	E	✅	HGH
134	Minimum Depth of Binary Tree	E	✅	MED
135	Path Sum	E	✅	HGH
136	Invert Binary Tree	E	✅	HGH
137	Binary Tree Paths	E	✅	HGH
138	Subtree of Another Tree	E	✅	HGH
139	Binary Tree Inorder Traversal	M	✅	MED
140	Binary Tree Level Order Traversal	M	✅	HGH
141	Binary Tree Zigzag Level Order Traversal	M	✅	HGH
142	Flatten Binary Tree to Linked List	M	✅	MED
143	Binary Tree Preorder Traversal	M	✅	MED
144	Binary Tree Postorder Traversal	M	✅	HGH
145	Binary Tree Right Side View	M	✅	HGH
146	Count Good Nodes in Binary Tree	M	✅	MED
147	Binary Tree Maximum Path Sum	H	✅	MED

---

Last Updated: 2026-02-13 19:40:00
Auto-generated from CSV by update_progress.py