persistent systemsLeetCode Questions
VerifiedCommunity-reported coding interview questions for persistent systems, organized by frequency across 30-day, 3-month, and 6-month recency windows.
# | Problem | Difficulty | Frequency↓ | Acceptance | |
|---|---|---|---|---|---|
| #2220 | Minimum Bit Flips to Convert Number3 sources | Easy | 100% | 88.0% | |
| #14 | Longest Common Prefix3 sources | Easy | 89% | 47.9% | |
| #1 | Two Sum3 sources | Easy | 84% | 57.8% | |
| #3 | Medium | 84% | 39.4% | ||
| #20 | Valid Parentheses3 sources | Easy | 78% | 44.5% | |
| #49 | Group Anagrams2 sources | Medium | 75% | 72.9% | |
| #5 | Longest Palindromic Substring3 sources | Medium | 69% | 38.2% | |
| #88 | Merge Sorted Array3 sources | Easy | 69% | 55.2% | |
| #53 | Medium | 63% | 53.5% |
persistent systems Technical Interview Overview & Company-Wise Questions
This page organizes 9 community-reported persistent systems 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 persistent systems preparation
Start with the 0 questions reported in the last 30 days, then work through the highest-frequency topics (String, Array, Hash Table, Sorting). This page tracks 9 community-reported questions across 5 Easy, 4 Medium, and 0 Hard problems. Data refreshed Oct 28, 2026.
Frequently Asked Questions
What are the most frequent LeetCode questions for persistent systems?
The leading problems in the available persistent systems interview reports include Minimum Bit Flips to Convert Number, Longest Common Prefix, Two Sum. This page tracks 9 reported problems across Easy (5), Medium (4), and Hard (0) difficulty levels.
Where can I practice company-wise LeetCode questions for persistent systems?
You can review all 9 persistent systems 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 persistent systems 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 persistent systems coding questions?
Easy is the largest tracked difficulty group for persistent systems, with 5 problems. The full distribution is 5 Easy, 4 Medium, and 0 Hard.