American Express vs Hashedin Interview Questions
American Express lists 23 LeetCode interview questions while Hashedin lists 23. They share 3 problems — 13% of American Express's bank and 13% of Hashedin's. Focus on the overlap first, then drill into 20 American Express-only and 20 Hashedin-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 3 overlapping problems first. These are the highest-yield questions for candidates interviewing at both American Express and Hashedin.
Step 2 — Company-specific depth: Add American Express-specific problems like Minimum Deletions to Make Character Frequencies Unique, Maximum Equal Frequency, Divide an Array Into Subarrays With Minimum Cost II and Hashedin-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Hashedin skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
3 Shared Questions
High-priority problems to practice for both American Express and Hashedin.
| Problem | Difficulty |
|---|---|
| Best Time to Buy and Sell Stock | Easy |
| 3Sum | Medium |
| Isomorphic Strings | Easy |
Unique to American Express (20)
Problems in American Express's list that do not appear at Hashedin.
Unique to Hashedin (20)
Problems in Hashedin's list that do not appear at American Express.
| Problem | Difficulty |
|---|---|
| Find Candidates for Data Scientist Position | Easy |
| Maximize Items | Hard |
| Maximum Points Inside the Square | Medium |
| Count the Number of Powerful Integers | Hard |
| Minimize Length of Array Using Operations | Medium |
| Maximum Subarray | Medium |
| Trapping Rain Water | Hard |
| Container With Most Water | Medium |
| Minimum Cost to Make Array Equal | Hard |
| Next Permutation | Medium |
| Chalkboard XOR Game | Hard |
| Jump Game II | Medium |
Frequently Asked Questions
How many LeetCode questions do American Express and Hashedin share?
American Express and Hashedin share 3 LeetCode interview questions. 20 problems appear only in American Express's list and 20 appear only in Hashedin's list.
What topics overlap most between American Express and Hashedin?
The most common shared topics between American Express and Hashedin are Array (2 shared questions), Dynamic Programming (1 shared questions), Two Pointers (1 shared questions), Sorting (1 shared questions), Hash Table (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: American Express or Hashedin?
American Express has 8 Easy, 12 Medium, and 3 Hard questions. Hashedin has 3 Easy, 15 Medium, and 5 Hard questions. Hashedin has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both American Express and Hashedin?
Start with the 3 shared problems since they cover what both companies ask most often. Then add 20 American Express-specific and 20 Hashedin-specific questions to round out your prep.