American Express vs Atlassian Interview Questions
American Express lists 23 LeetCode interview questions while Atlassian lists 62. They share 3 problems — 13% of American Express's bank and 5% of Atlassian's. Focus on the overlap first, then drill into 20 American Express-only and 59 Atlassian-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 Atlassian.
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 Atlassian-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Atlassian 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 Atlassian.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Best Time to Buy and Sell Stock | Easy |
Unique to American Express (20)
Problems in American Express's list that do not appear at Atlassian.
Unique to Atlassian (59)
Problems in Atlassian's list that do not appear at American Express.
| Problem | Difficulty |
|---|---|
| Rank Teams by Votes | Medium |
| Stock Price Fluctuation | Medium |
| All O`one Data Structure | Hard |
| Design Snake Game | Medium |
| Merge Intervals | Medium |
| High-Access Employees | Medium |
| Lowest Common Ancestor of a Binary Tree | Medium |
| Meeting Rooms II | Medium |
| Word Search | Medium |
| Find the Width of Columns of a Grid | Easy |
| Number of Possible Sets of Closing Branches | Hard |
| Text Justification | Hard |
Frequently Asked Questions
How many LeetCode questions do American Express and Atlassian share?
American Express and Atlassian share 3 LeetCode interview questions. 20 problems appear only in American Express's list and 59 appear only in Atlassian's list.
What topics overlap most between American Express and Atlassian?
The most common shared topics between American Express and Atlassian are Array (2 shared questions), Hash Table (2 shared questions), String (1 shared questions), Sliding Window (1 shared questions), Dynamic Programming (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: American Express or Atlassian?
American Express has 8 Easy, 12 Medium, and 3 Hard questions. Atlassian has 6 Easy, 42 Medium, and 14 Hard questions. Atlassian has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both American Express and Atlassian?
Start with the 3 shared problems since they cover what both companies ask most often. Then add 20 American Express-specific and 20 Atlassian-specific questions to round out your prep.