American Express vs Meta Interview Questions
American Express lists 23 LeetCode interview questions while Meta lists 217. They share 7 problems — 30% of American Express's bank and 3% of Meta's. Focus on the overlap first, then drill into 16 American Express-only and 210 Meta-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 7 overlapping problems first. These are the highest-yield questions for candidates interviewing at both American Express and Meta.
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 Meta-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Meta skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
7 Shared Questions
High-priority problems to practice for both American Express and Meta.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Best Time to Buy and Sell Stock | Easy |
| 3Sum | Medium |
| Rotate Array | Medium |
| Permutations | Medium |
| Longest Common Prefix | Easy |
Unique to American Express (16)
Problems in American Express's list that do not appear at Meta.
Unique to Meta (210)
Problems in Meta's list that do not appear at American Express.
| Problem | Difficulty |
|---|---|
| Minimum Remove to Make Valid Parentheses | Medium |
| Valid Word Abbreviation | Easy |
| Binary Tree Vertical Order Traversal | Medium |
| Valid Palindrome II | Easy |
| Lowest Common Ancestor of a Binary Tree III | Medium |
| Merge Sorted Array | Easy |
| Kth Largest Element in an Array | Medium |
| Pow(x, n) | Medium |
| Binary Tree Right Side View | Medium |
| Simplify Path | Medium |
| Merge Intervals | Medium |
| Basic Calculator II | Medium |
Frequently Asked Questions
How many LeetCode questions do American Express and Meta share?
American Express and Meta share 7 LeetCode interview questions. 16 problems appear only in American Express's list and 210 appear only in Meta's list.
What topics overlap most between American Express and Meta?
The most common shared topics between American Express and Meta are Array (6 shared questions), Hash Table (2 shared questions), String (2 shared questions), Two Pointers (2 shared questions), Sliding Window (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: American Express or Meta?
American Express has 8 Easy, 12 Medium, and 3 Hard questions. Meta has 52 Easy, 132 Medium, and 33 Hard questions. Meta has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both American Express and Meta?
Start with the 7 shared problems since they cover what both companies ask most often. Then add 16 American Express-specific and 20 Meta-specific questions to round out your prep.