Practice problems across 75+ categories
Practice problems frequently asked at Binary Tree • 177 problems | 37 Easy | 122 Medium | 17 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 106 | Kth Smallest Element in a BST | Medium | TreeDepth-First SearchBinary Search Tree |
| 107 | Largest BST Subtree | Medium | Dynamic ProgrammingTreeDepth-First Search |
| 108 | Leaf-Similar Trees | Easy | TreeDepth-First SearchBinary Tree |
| 109 | Level Order Traversal | Medium | TreesBinary TreeQueue |
| 110 | Linked List in Binary Tree | Medium | Linked ListTreeDepth-First Search |
| 111 | Longest Univalue Path | Medium | TreeDepth-First SearchBinary Tree |
| 112 | Longest ZigZag Path in a Binary Tree | Medium | Dynamic ProgrammingTreeDepth-First Search |
| 113 | Lowest Common Ancestor of a Binary Search Tree | Medium | TreeDepth-First SearchBinary Search Tree |
| 114 | Lowest Common Ancestor of a Binary Tree | Medium | TreeDepth-First SearchBinary Tree |
| 115 | Lowest Common Ancestor of a Binary Tree II | Medium | TreeDepth-First SearchBinary Tree |
| 116 | Lowest Common Ancestor of a Binary Tree III | Medium | Hash TableTwo PointersTree |
| 117 | Lowest Common Ancestor of a Binary Tree IV | Medium | Hash TableTreeDepth-First Search |
| 118 | Lowest Common Ancestor of Deepest Leaves | Medium | Hash TableTreeDepth-First Search |
| 119 | Make Costs of Paths Equal in a Binary Tree | Medium | ArrayDynamic ProgrammingGreedy |
| 120 | Maximum Average Subtree | Medium | TreeDepth-First SearchBinary Tree |
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