•CODING INTERVIEW QUESTIONS
Oracle Medium Coding Interview Questions (DSA)
37 medium DSA problems sourced from real Oracle interviews
Oracle Medium Coding Interview Questions
| Problem | Difficulty | Tags |
|---|---|---|
| 4Sum | Medium | ArrayTwo PointersSorting |
| Medium | ArrayBinary Search | |
| Accounts Merge | Medium | ArrayHash TableString |
| Medium | ArrayDepth-First SearchBreadth-First Search | |
| Time Based Key-Value Store | Medium | Hash TableStringBinary Search |
| Medium | ArrayHash TableString | |
| Medium | Linked ListMathRecursion | |
| Medium | Hash TableStringSliding Window | |
| Medium | Two PointersStringDynamic Programming | |
| Zigzag Conversion | Medium | String |
| Medium | ArrayTwo PointersGreedy | |
| Letter Combinations of a Phone Number | Medium | Hash TableStringBacktracking |
| Medium | ArrayTwo PointersSorting | |
| Generate Parentheses | Medium | StringDynamic ProgrammingBacktracking |
| Find First and Last Position of Element in Sorted Array | Medium | ArrayBinary Search |
| Jump Game II | Medium | ArrayDynamic ProgrammingGreedy |
| Permutations | Medium | ArrayBacktracking |
| Pow(x, n) | Medium | MathRecursion |
| Rotate Image | Medium | ArrayMathMatrix |
| Medium | ArrayDivide and ConquerDynamic Programming | |
| Spiral Matrix | Medium | ArrayMatrixSimulation |
| Jump Game | Medium | ArrayDynamic ProgrammingGreedy |
| Medium | ArraySortingQuicksort | |
| Insert Interval | Medium | Array |
| Set Matrix Zeroes | Medium | ArrayHash TableMatrix |
| Sort Colors | Medium | ArrayTwo PointersSorting |
| Word Search | Medium | ArrayStringBacktracking |
| Search a 2D Matrix | Medium | ArrayBinary SearchMatrix |
| Restore IP Addresses | Medium | StringBacktracking |
| Medium | TreeDepth-First SearchBinary Search Tree | |
| Binary Tree Zigzag Level Order Traversal | Medium | TreeBreadth-First SearchBinary Tree |
| Populating Next Right Pointers in Each Node | Medium | Linked ListTreeDepth-First Search |
| Medium | ArrayHash TableUnion-Find | |
| Medium | ArrayGreedy | |
| Copy List with Random Pointer | Medium | Hash TableLinked List |
| Medium | Hash TableLinked ListDesign | |
| Min Stack | Medium | StackDesign |
Top Data Structures & Patterns — Medium
Array
22 (59%)
String
10 (27%)
Hash Table
9 (24%)
Sorting
6 (16%)
Matrix
6 (16%)
Two Pointers
5 (14%)
Depth-First Search
5 (14%)
Dynamic Programming
5 (14%)
Frequently Asked Questions
What medium Oracle coding questions are most common?
InterviewSkool has 37 medium Oracle coding questions. Focus on the top 10 to 15 most common problems for the best ROI.
How many medium questions does Oracle have?
Oracle has 37 medium coding questions out of 50 total. Most interviews focus on Medium problems, so this is the most important difficulty to prepare for.
Are these Oracle medium questions free?
Yes. All 37 medium Oracle coding questions are free to browse. No sign-up required. Filter by topic and click any problem to open it on LeetCode.
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