Practice problems across 75+ categories
Practice problems frequently asked at Binary Tree • 177 problems | 37 Easy | 122 Medium | 17 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 61 | Cousins in Binary Tree | Easy | TreeDepth-First SearchBreadth-First Search |
| 62 | Cousins in Binary Tree II | Medium | Hash TableTreeDepth-First Search |
| 63 | Create Binary Tree From Descriptions | Medium | ArrayHash TableTree |
| 64 | Cycle Length Queries in a Tree | Hard | ArrayTreeBinary Tree |
| 65 | Deepest Leaves Sum | Medium | TreeDepth-First SearchBreadth-First Search |
| 66 | Delete Leaves With a Given Value | Medium | TreeDepth-First SearchBinary Tree |
| 67 | Delete Node in a BST | Medium | TreeBinary Search TreeBinary Tree |
| 68 | Delete Nodes And Return Forest | Medium | ArrayHash TableTree |
| 69 | Depth of BST Given Insertion Order | Medium | ArrayTreeBinary Search Tree |
| 70 | Design an Expression Tree With Evaluate Function | Medium | ArrayMathStack |
| 71 | Diameter of Binary Tree | Easy | TreeDepth-First SearchBinary Tree |
| 72 | Distribute Coins in Binary Tree | Medium | TreeDepth-First SearchBinary Tree |
| 73 | Encode N-ary Tree to Binary Tree | Hard | TreeDepth-First SearchBreadth-First Search |
| 74 | Equal Tree Partition | Medium | TreeDepth-First SearchBinary Tree |
| 75 | Evaluate Boolean Binary Tree | Easy | TreeDepth-First SearchBinary Tree |
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