• [ ] Completed

🎯 LeetCode Problems (20)

Binary Tree (DFS / General)

• [ ] #112 Path Sum
• [ ] #129 Sum Root to Leaf Numbers
• [ ] #114 Flatten Binary Tree to Linked List
• [ ] #116 Populating Next Right Pointers in Each Node
• [ ] #124 Binary Tree Maximum Path Sum
• [ ] #222 Count Complete Tree Nodes
• [ ] #236 Lowest Common Ancestor of a Binary Tree
• [ ] #173 Binary Search Tree Iterator

Binary Tree (BFS)

• [ ] #102 Binary Tree Level Order Traversal
• [ ] #103 Binary Tree Zigzag Level Order Traversal
• [ ] #199 Binary Tree Right Side View
• [ ] #637 Average of Levels in Binary Tree

Binary Search Tree

• [ ] #98 Validate Binary Search Tree
• [ ] #230 Kth Smallest Element in a BST