Practice problems across 75+ categories
Practice problems frequently asked at Tree • 252 problems | 41 Easy | 150 Medium | 60 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 181 | Merkle Tree Builder | Hard | CryptographyTreeHashing |
| 182 | Minimize the Total Price of the Trips | Hard | ArrayDynamic ProgrammingTree |
| 183 | Minimum Absolute Difference in BST | Easy | TreeDepth-First SearchBreadth-First Search |
| 184 | Minimum Depth of Binary Tree | Easy | TreeDepth-First SearchBreadth-First Search |
| 185 | Minimum Distance Between BST Nodes | Easy | TreeDepth-First SearchBreadth-First Search |
| 186 | Minimum Edge Weight Equilibrium Queries in a Tree | Hard | ArrayTreeGraph |
| 187 | Minimum Flips in Binary Tree to Get Result | Hard | Dynamic ProgrammingTreeDepth-First Search |
| 188 | Minimum Fuel Cost to Report to the Capital | Medium | TreeDepth-First SearchBreadth-First Search |
| 189 | Minimum Increments to Equalize Leaf Paths | Medium | ArrayDynamic ProgrammingTree |
| 190 | Minimum Number of Operations to Sort a Binary Tree by Level | Medium | TreeBreadth-First SearchBinary Tree |
| 191 | Minimum Score After Removals on a Tree | Hard | ArrayBit ManipulationTree |
| 192 | Minimum Time to Collect All Apples in a Tree | Medium | Hash TableTreeDepth-First Search |
| 193 | Minimum Weighted Subgraph With the Required Paths II | Hard | ArrayTreeDepth-First Search |
| 194 | Monte Carlo Tree Search | Hard | Game TheoryTreeProbability |
| 195 | Most Frequent Subtree Sum | Medium | Hash TableTreeDepth-First Search |
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