OracleLeetCode Questions
VerifiedCommunity-reported coding interview questions for Oracle, organized by frequency across 30-day, 3-month, and 6-month recency windows.
# | Problem | Difficulty | Frequency↓ | Acceptance | |
|---|---|---|---|---|---|
| #146 | LRU Cache3 sources | Medium | 100% | 47.6% | |
| #1 | Two Sum3 sources | Easy | 88% | 57.8% | |
| #3 | Medium | 88% | 39.4% | ||
| #200 | Number of Islands3 sources | Medium | 88% | 64.7% | |
| #49 | Group Anagrams3 sources | Medium | 82% | 72.9% | |
| #347 | Top K Frequent Elements3 sources | Medium | 78% | 66.8% | |
| #239 | Sliding Window Maximum3 sources | Hard | 77% | 49.0% | |
| #23 | Merge k Sorted Lists3 sources | Hard | 76% | 60.0% | |
| #20 | Valid Parentheses3 sources | Easy | 75% | 44.5% | |
| #253 | Meeting Rooms II3 sources | Medium | 75% | 52.7% | |
| #56 | Merge Intervals3 sources | Medium | 75% | 52.3% | |
| #54 | Spiral Matrix3 sources | Medium | 75% | 57.2% | |
| #33 | Search in Rotated Sorted Array3 sources | Medium | 70% | 45.2% | |
| #460 | LFU Cache3 sources | Hard | 70% | 49.7% | |
| #206 | Reverse Linked List3 sources | Easy | 66% | 80.8% | |
| #1209 | Medium | 66% | 61.6% | ||
| #5 | Longest Palindromic Substring3 sources | Medium | 64% | 38.2% | |
| #11 | Container With Most Water3 sources | Medium | 64% | 60.4% | |
| #15 | 3Sum3 sources | Medium | 64% | 39.4% | |
| #394 | Decode String3 sources | Medium | 64% | 62.9% | |
| #735 | Asteroid Collision3 sources | Medium | 64% | 48.4% | |
| #53 | Maximum Subarray3 sources | Medium | 63% | 53.5% | |
| #3438 | Easy | 63% | 61.1% | ||
| #875 | Koko Eating Bananas3 sources | Medium | 63% | 50.2% | |
| #155 | Min Stack3 sources | Medium | 63% | 58.4% | |
| #199 | Binary Tree Right Side View3 sources | Medium | 63% | 70.7% | |
| #242 | Valid Anagram3 sources | Easy | 63% | 68.3% | |
| #1797 | Design Authentication Manager3 sources | Medium | 63% | 58.7% | |
| #22 | Generate Parentheses3 sources | Medium | 63% | 78.9% | |
| #2506 | Count Pairs Of Similar Strings3 sources | Easy | 63% | 73.8% | |
| #2836 | Hard | 63% | 31.5% | ||
| #1200 | Minimum Absolute Difference3 sources | Easy | 63% | 75.2% | |
| #13 | Roman to Integer3 sources | Easy | 63% | 66.8% | |
| #121 | Best Time to Buy and Sell Stock3 sources | Easy | 63% | 57.0% | |
| #128 | Longest Consecutive Sequence3 sources | Medium | 63% | 47.2% | |
| #2466 | Count Ways To Build Good Strings3 sources | Medium | 63% | 58.9% | |
| #2580 | Medium | 63% | 39.3% | ||
| #2549 | Count Distinct Numbers on Board3 sources | Easy | 63% | 61.8% | |
| #994 | Rotting Oranges3 sources | Medium | 63% | 59.0% | |
| #3012 | Medium | 63% | 36.1% | ||
| #3015 | Medium | 63% | 58.1% | ||
| #3017 | Hard | 63% | 23.8% | ||
| #2192 | Medium | 63% | 62.3% | ||
| #1380 | Lucky Numbers in a Matrix3 sources | Easy | 63% | 80.1% | |
| #1410 | HTML Entity Parser3 sources | Medium | 63% | 50.1% | |
| #42 | Trapping Rain Water3 sources | Hard | 63% | 67.7% | |
| #236 | Medium | 63% | 69.7% | ||
| #1611 | Hard | 63% | 78.3% | ||
| #295 | Find Median from Data Stream3 sources | Hard | 60% | 54.7% | |
| #981 | Time Based Key-Value Store3 sources | Medium | 60% | 50.0% |
Oracle Technical Interview Overview & Company-Wise Questions
This page organizes 319 community-reported Oracle LeetCode problems by difficulty, frequency, and recency so you can build a focused preparation queue. Reports are aggregated from public datasets and should be treated as preparation signals rather than predictions.
How to prioritize Oracle preparation
Start with the 3 questions reported in the last 30 days, then work through the highest-frequency topics (Array, String, Hash Table, Dynamic Programming). This page tracks 319 community-reported questions across 62 Easy, 197 Medium, and 60 Hard problems. Data refreshed Oct 28, 2026.
Frequently Asked Questions
What are the most frequent LeetCode questions for Oracle?
The leading problems in the available Oracle interview reports include LRU Cache, Two Sum, Longest Substring Without Repeating Characters. This page tracks 319 reported problems across Easy (62), Medium (197), and Hard (60) difficulty levels.
Where can I practice company-wise LeetCode questions for Oracle?
You can review all 319 Oracle questions on this page, filter them by 30-day, 3-month, 6-month, and all-time windows, and save practice progress for free.
How does LeetMap Pro organize Oracle interview problem recency?
LeetMap Pro groups community-reported occurrences into 30-day, 3-month, 6-month, and older windows. These are preparation signals from the available sources, not guarantees that a problem will appear in a future interview.
What is the difficulty distribution for Oracle coding questions?
Medium is the largest tracked difficulty group for Oracle, with 197 problems. The full distribution is 62 Easy, 197 Medium, and 60 Hard.