Company interviews / Oracle
Oracle interview practice
272 coding questions are known to come up in Oracle interviews (55 easy, 167 medium, 50 hard), 14 of them in the last six months. The most common topics are Array, String, Hash Table, Dynamic Programming.
272Known questions
14Asked in last 6 months
167Medium
50Hard
Coding questions Oracle asks
From public company-tagged interview question lists. Most recent and most frequent first.
Easy 55Medium 167Hard 50
- Array134
- String72
- Hash Table62
- Dynamic Programming40
- Two Pointers35
- Math35
- Depth-First Search34
- Sorting34
- Breadth-First Search33
- Binary Search32
- Linked List29
- Stack24
| Question | Difficulty | Asked recently |
|---|---|---|
| LRU Cache | Medium | Yes |
| Number of Islands | Medium | Yes |
| Two Sum | Easy | Yes |
| Group Anagrams | Medium | Yes |
| Search in Rotated Sorted Array | Medium | Yes |
| Binary Tree Right Side View | Medium | Yes |
| Time Based Key-Value Store | Medium | Yes |
| Minimum Window Substring | Hard | Yes |
| Merge In Between Linked Lists | Medium | Yes |
| Diagonal Traverse | Medium | Yes |
| Maximal Square | Medium | Yes |
| Open the Lock | Medium | Yes |
| Two Sum II - Input Array Is Sorted | Medium | Yes |
| Sum Root to Leaf Numbers | Medium | Yes |
| Longest Substring Without Repeating Characters | Medium | — |
| Top K Frequent Elements | Medium | — |
| Sliding Window Maximum | Hard | — |
| Merge k Sorted Lists | Hard | — |
| Valid Parentheses | Easy | — |
| Merge Intervals | Medium | — |
| Spiral Matrix | Medium | — |
| LFU Cache | Hard | — |
| Remove All Adjacent Duplicates in String II | Medium | — |
| Reverse Linked List | Easy | — |
| Longest Palindromic Substring | Medium | — |
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