Practice problems across 75+ categories
Practice problems frequently asked at Tree • 252 problems | 41 Easy | 150 Medium | 60 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 226 | Rope Data Structure | Hard | Advanced DSTreeString |
| 227 | Same Tree | Easy | TreeDepth-First SearchBreadth-First Search |
| 228 | Scope and Binding Resolver | Hard | CompilerTreeHashMap |
| 229 | Search in a Binary Search Tree | Easy | TreeBinary Search TreeBinary Tree |
| 230 | Second Minimum Node In a Binary Tree | Easy | TreeDepth-First SearchBinary Tree |
| 231 | Serialize and Deserialize Binary Tree | Hard | StringTreeDepth-First Search |
| 232 | Serialize and Deserialize BST | Medium | StringTreeDepth-First Search |
| 233 | Serialize and Deserialize N-ary Tree | Hard | StringTreeDepth-First Search |
| 234 | Shortest Path in a Weighted Tree | Hard | ArrayTreeDepth-First Search |
| 235 | Smallest Common Region | Medium | ArrayHash TableString |
| 236 | Smallest Missing Genetic Value in Each Subtree | Hard | Dynamic ProgrammingTreeDepth-First Search |
| 237 | Smallest String Starting From Leaf | Medium | StringBacktrackingTree |
| 238 | Smallest Subtree with all the Deepest Nodes | Medium | Hash TableTreeDepth-First Search |
| 239 | Split BST | Medium | TreeBinary Search TreeRecursion |
| 240 | Step-By-Step Directions From a Binary Tree Node to Another | Medium | StringTreeDepth-First Search |
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