Prepare for American Express technical interviews with 28 tracked LeetCode questions, sortable by difficulty and topic.
| Title | Difficulty | Topics | Frequency | LeetCode |
|---|---|---|---|---|
| Minimum Deletions to Make Character Frequencies Unique | Medium | 100% | Solve | |
| Maximum Equal Frequency | Hard | 97.9% | Solve | |
| Two Sum | Easy | 95.7% | Solve | |
| Divide an Array Into Subarrays With Minimum Cost I | Easy | 95.5% | Solve | |
| Divide an Array Into Subarrays With Minimum Cost II | Hard | 95.5% | Solve | |
| Equal Sum Arrays With Minimum Number of Operations | Medium | 95.5% | Solve | |
| Find a Value of a Mysterious Function Closest to Target | Hard | 95.5% | Solve | |
| Maximize the Topmost Element After K Moves | Medium | 95.5% | Solve | |
| Maximum XOR After Operations | Medium | 95.5% | Solve | |
| Minimum Number of Operations to Make Array XOR Equal to K | Medium | 95.5% | Solve | |
| Percentage of Letter in String | Easy | 95.5% | Solve | |
| Ugly Number III | Medium | 95.5% | Solve | |
| Best Time to Buy and Sell Stock | Easy | 92% | Solve | |
| Rotate Array | Medium | 84% | Solve | |
| Linked List Cycle II | Medium | 80.2% | Solve | |
| Longest Common Prefix | Easy | 75% | Solve | |
| Isomorphic Strings | Easy | 71% | Solve | |
| 3Sum | Medium | 68.9% | Solve | |
| Longest Substring Without Repeating Characters | Medium | 68.9% | Solve | |
| Reverse Words in a String | Medium | 68.9% | Solve |
28 questions total
Company analytics
Questions tracked
28
Questions currently linked to American Express
Topics represented
28
Distinct topics visible in this company set
Dominant difficulty
medium
50% of tracked questions
Avg frequency score
78.3
Mean frequency across this company question set
American Express currently has 28 tracked questions linked to 28 topics, so this page is a good benchmark for how deep the dataset goes on one employer.
The most common topics for American Express include Array, Hash Table, String, and Two Pointers. Array alone appears 16 times in the visible topic distribution. That topic spread helps you identify whether this company is repeating a few patterns or testing across a broader surface area.
The current question set averages a frequency score of 78.3, and medium is the dominant difficulty bucket at 50% of tracked coverage. That makes it easier to decide whether to practice for repetition, complexity, or both.
American Express related paths
This section answers the most practical questions about using the American Express route as a company-specific LeetCode study page.
Start with the highest-frequency questions inside Array, Hash Table, and String, then sort the table by frequency to build a shortlist. That gives you a faster first pass through American Express's interview patterns than trying to cover every linked problem at once.
medium makes up 50% of the tracked American Express question set. Use that split to decide whether your study plan should emphasize coverage, realistic interview pressure, or deeper problem solving.
Use this page to identify American Express's strongest topic signal, then open Array and the global most-asked or questions explorer routes to see whether that company-specific pattern is also common across the wider dataset.
