American ExpressLeetCode Questions
VerifiedCommunity-reported coding interview questions for American Express, organized by frequency across 30-day, 3-month, and 6-month recency windows.
# | Problem | Difficulty | Frequency↓ | Acceptance | |
|---|---|---|---|---|---|
| #4016 | Medium | 100% | 0.4% | ||
| #1647 | Medium | 100% | 61.5% | ||
| #3013 | Hard | 100% | 54.7% | ||
| #1201 | Ugly Number III3 sources | Medium | 100% | 31.7% | |
| #1224 | Maximum Equal Frequency3 sources | Hard | 100% | 38.3% | |
| #1521 | Hard | 100% | 47.4% | ||
| #3010 | Easy | 100% | 80.6% | ||
| #2278 | Percentage of Letter in String3 sources | Easy | 100% | 75.3% | |
| #2202 | Medium | 100% | 24.1% | ||
| #2317 | Maximum XOR After Operations3 sources | Medium | 100% | 80.0% | |
| #1775 | Medium | 100% | 54.7% | ||
| #2997 | Medium | 100% | 85.5% | ||
| #1 | Two Sum3 sources | Easy | 97% | 57.8% | |
| #242 | Valid Anagram3 sources | Easy | 84% | 68.3% | |
| #121 | Best Time to Buy and Sell Stock3 sources | Easy | 84% | 57.0% | |
| #3 | Medium | 79% | 39.4% | ||
| #2850 | Medium | 71% | 0.5% | ||
| #1304 | Easy | 71% | 78.4% | ||
| #14 | Longest Common Prefix3 sources | Easy | 62% | 47.9% | |
| #189 | Rotate Array3 sources | Medium | 60% | 45.2% | |
| #46 | Permutations3 sources | Medium | 60% | 82.1% | |
| #205 | Isomorphic Strings3 sources | Easy | 60% | 48.7% | |
| #142 | Linked List Cycle II3 sources | Medium | 60% | 58.5% | |
| #1250 | Check If It Is a Good Array3 sources | Hard | 60% | 65.5% | |
| #239 | Sliding Window Maximum2 sources | Hard | 60% | 0.5% | |
| #56 | Merge Intervals2 sources | Medium | 60% | 0.5% | |
| #23 | Merge k Sorted Lists2 sources | Hard | 60% | 0.6% | |
| #15 | 3Sum2 sources | Medium | 60% | 39.4% | |
| #347 | Medium | 53% | 0.7% | ||
| #1277 | Medium | 53% | 0.8% |
American Express Technical Interview Overview & Company-Wise Questions
This page organizes 30 community-reported American Express 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 American Express preparation
Start with the 2 questions reported in the last 30 days, then work through the highest-frequency topics (Array, Hash Table, String, Sorting). This page tracks 30 community-reported questions across 8 Easy, 16 Medium, and 6 Hard problems. Data refreshed Oct 28, 2026.
Frequently Asked Questions
What are the most frequent LeetCode questions for American Express?
The leading problems in the available American Express interview reports include Maximum Area of Two Non-Overlapping Square Submatrices, Minimum Deletions to Make Character Frequencies Unique, Divide an Array Into Subarrays With Minimum Cost II. This page tracks 30 reported problems across Easy (8), Medium (16), and Hard (6) difficulty levels.
Where can I practice company-wise LeetCode questions for American Express?
You can review all 30 American Express 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 American Express 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 American Express coding questions?
Medium is the largest tracked difficulty group for American Express, with 16 problems. The full distribution is 8 Easy, 16 Medium, and 6 Hard.