Company interviews / American Express
American Express interview practice
26 coding questions are known to come up in American Express interviews (8 easy, 12 medium, 6 hard), 2 of them in the last six months. The most common topics are Array, Hash Table, String, Sorting.
26Known questions
2Asked in last 6 months
12Medium
6Hard
Coding questions American Express asks
From public company-tagged interview question lists. Most recent and most frequent first.
Easy 8Medium 12Hard 6
- Array17
- Hash Table9
- String6
- Sorting5
- Math5
- Sliding Window3
- Heap (Priority Queue)3
- Greedy3
- Two Pointers3
- Dynamic Programming2
- Binary Search2
- Number Theory2
| Question | Difficulty | Asked recently |
|---|---|---|
| Minimum Moves to Spread Stones Over Grid | Medium | Yes |
| Merge Intervals | Medium | Yes |
| Divide an Array Into Subarrays With Minimum Cost II | Hard | — |
| Minimum Deletions to Make Character Frequencies Unique | Medium | — |
| Maximum Equal Frequency | Hard | — |
| Ugly Number III | Medium | — |
| Divide an Array Into Subarrays With Minimum Cost I | Easy | — |
| Maximum XOR After Operations | Medium | — |
| Percentage of Letter in String | Easy | — |
| Equal Sum Arrays With Minimum Number of Operations | Medium | — |
| Find a Value of a Mysterious Function Closest to Target | Hard | — |
| Maximize the Topmost Element After K Moves | Medium | — |
| Two Sum | Easy | — |
| Valid Anagram | Easy | — |
| Best Time to Buy and Sell Stock | Easy | — |
| Longest Substring Without Repeating Characters | Medium | — |
| Find N Unique Integers Sum up to Zero | Easy | — |
| Check If It Is a Good Array | Hard | — |
| Sliding Window Maximum | Hard | — |
| Isomorphic Strings | Easy | — |
| Rotate Array | Medium | — |
| Linked List Cycle II | Medium | — |
| Permutations | Medium | — |
| Merge k Sorted Lists | Hard | — |
| 3Sum | Medium | — |
Practice a American Express interview
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