Practice problems across 75+ categories
Practice problems frequently asked at Microsoft • 3344 problems | 831 Easy | 1747 Medium | 746 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 151 | Binary Search | Easy | ArrayBinary Search |
| 152 | Binary Search Tree Iterator | Medium | StackTreeDesign |
| 153 | Binary Search Tree Iterator II | Medium | StackTreeDesign |
| 154 | Binary Search Tree to Greater Sum Tree | Medium | TreeDepth-First SearchBinary Search Tree |
| 155 | Binary Searchable Numbers in an Unsorted Array | Medium | ArrayBinary Search |
| 156 | Binary String With Substrings Representing 1 To N | Medium | Hash TableStringBit Manipulation |
| 157 | Binary Subarrays With Sum | Medium | ArrayHash TableSliding Window |
| 158 | Binary Tree Cameras | Hard | Dynamic ProgrammingTreeDepth-First Search |
| 159 | Binary Tree Coloring Game | Medium | TreeDepth-First SearchBinary Tree |
| 160 | Binary Tree Inorder Traversal | Easy | StackTreeDepth-First Search |
| 161 | Binary Tree Level Order Traversal | Medium | TreeBreadth-First SearchBinary Tree |
| 162 | Binary Tree Level Order Traversal II | Medium | TreeBreadth-First SearchBinary Tree |
| 163 | Binary Tree Longest Consecutive Sequence | Medium | TreeDepth-First SearchBinary Tree |
| 164 | Binary Tree Longest Consecutive Sequence II | Medium | TreeDepth-First SearchBinary Tree |
| 165 | Binary Tree Maximum Path Sum | Hard | Dynamic ProgrammingTreeDepth-First Search |
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