OpenAI LeetCode Questions
17 questions all-time · 1 easy · 14 medium · 2 hard
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| # | Problem | Difficulty | Frequency | Acceptance | |
|---|---|---|---|---|---|
| 1 | Design SQL | Medium | 100 | 0.6% | |
| 2 | Design Memory Allocator | Medium | 91 | 0.5% | |
| 3 | Encode and Decode Strings | Medium | 89 | 0.5% | |
| 4 | Flatten Nested List Iterator | Medium | 86 | 0.7% | |
| 5 | Time Based Key-Value Store | Medium | 79 | 0.5% | |
| 6 | IP to CIDR | Medium | 79 | 0.5% | |
| 7 | Rotting Oranges | Medium | 76 | 0.6% | |
| 8 | Design Excel Sum Formula | Hard | 69 | 0.4% | |
| 9 | Simplify Path | Medium | 65 | 0.5% | |
| 10 | Web Crawler Multithreaded | Medium | 50 | 0.5% | |
| 11 | Largest Local Values in a Matrix | Easy | 50 | 0.9% | |
| 12 | Asteroid Collision | Medium | 50 | 0.5% | |
| 13 | Trapping Rain Water | Hard | 50 | 0.7% | |
| 14 | Design Spreadsheet | Medium | 50 | 0.7% | |
| 15 | Design Hit Counter | Medium | 50 | 0.7% | |
| 16 | Design Authentication Manager | Medium | 50 | 0.6% | |
| 17 | Snapshot Array | Medium | 50 | 0.4% |
How to read this list
The tabs at the top split the questions by how recently people said they were asked in interviews. "Last 30 Days" is the past month, "Last 3 Months" is the past quarter, and so on. "All Time" is every question on record for this company.
Frequency is a score from 0 to 100 for how often a question showed up in that time window. A higher number means it came up more often, so the list starts with the most common questions first. Acceptance is the share of submissions that pass on LeetCode. Click any question to open it on LeetCode.