Amazon vs eBay Interview Questions
Amazon lists 1,968 LeetCode interview questions while eBay lists 62. They share 59 problems — 3% of Amazon's bank and 95% of eBay's. Focus on the overlap first, then drill into 1,909 Amazon-only and 3 eBay-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 59 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Amazon and eBay.
Step 2 — Company-specific depth: Add Amazon-specific problems like Trapping Rain Water, Best Time to Buy and Sell Stock, Add Two Numbers and eBay-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: eBay skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
59 Shared Questions
High-priority problems to practice for both Amazon and eBay.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| LRU Cache | Medium |
| Number of Islands | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Group Anagrams | Medium |
| Reorganize String | Medium |
| 3Sum | Medium |
| Longest Palindromic Substring | Medium |
| Merge Intervals | Medium |
| Valid Parentheses | Easy |
| Course Schedule | Medium |
| Merge k Sorted Lists | Hard |
| Rotting Oranges | Medium |
| Top K Frequent Elements | Medium |
| Generate Parentheses | Medium |
| Word Ladder | Hard |
| Product of Array Except Self | Medium |
| Word Search | Medium |
| Spiral Matrix | Medium |
| Kth Largest Element in an Array | Medium |
| Find Median from Data Stream | Hard |
| Find Peak Element | Medium |
| Jump Game II | Medium |
| Sort Colors | Medium |
| Best Time to Buy and Sell Stock II | Medium |
| Palindrome Linked List | Easy |
| Set Matrix Zeroes | Medium |
| Pow(x, n) | Medium |
| Concatenated Words | Hard |
| Partition Equal Subset Sum | Medium |
Showing top 30 of 59 shared problems.
Unique to Amazon (1,909)
Problems in Amazon's list that do not appear at eBay.
| Problem | Difficulty |
|---|---|
| Trapping Rain Water | Hard |
| Best Time to Buy and Sell Stock | Easy |
| Add Two Numbers | Medium |
| Container With Most Water | Medium |
| Median of Two Sorted Arrays | Hard |
| Koko Eating Bananas | Medium |
| Longest Common Prefix | Easy |
| Subarray Sum Equals K | Medium |
| Merge Sorted Array | Easy |
| Search in Rotated Sorted Array | Medium |
| Maximum Subarray | Medium |
| Longest Consecutive Sequence | Medium |
Unique to eBay (3)
Problems in eBay's list that do not appear at Amazon.
| Problem | Difficulty |
|---|---|
| Minimum Window Subsequence | Hard |
| Alternating Groups II | Medium |
| Block Placement Queries | Hard |
Frequently Asked Questions
How many LeetCode questions do Amazon and eBay share?
Amazon and eBay share 59 LeetCode interview questions. 1909 problems appear only in Amazon's list and 3 appear only in eBay's list.
What topics overlap most between Amazon and eBay?
The most common shared topics between Amazon and eBay are Array (18 shared questions), String (9 shared questions), Sorting (9 shared questions), Hash Table (8 shared questions), Dynamic Programming (6 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Amazon or eBay?
Amazon has 527 Easy, 1074 Medium, and 367 Hard questions. eBay has 10 Easy, 39 Medium, and 13 Hard questions. eBay has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Amazon and eBay?
Start with the 59 shared problems since they cover what both companies ask most often. Then add 20 Amazon-specific and 3 eBay-specific questions to round out your prep.