eBay vs IBM Interview Questions
eBay lists 62 LeetCode interview questions while IBM lists 115. They share 12 problems — 19% of eBay's bank and 10% of IBM's. Focus on the overlap first, then drill into 50 eBay-only and 103 IBM-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 12 overlapping problems first. These are the highest-yield questions for candidates interviewing at both eBay and IBM.
Step 2 — Company-specific depth: Add eBay-specific problems like Remove One Element to Make the Array Strictly Increasing, Alternating Digit Sum, Binary Gap and IBM-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
12 Shared Questions
High-priority problems to practice for both eBay and IBM.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Partition Equal Subset Sum | Medium |
| Two Sum | Easy |
| Spiral Matrix | Medium |
| Merge Intervals | Medium |
| Valid Parentheses | Easy |
| Longest Palindromic Substring | Medium |
| Group Anagrams | Medium |
| 3Sum | Medium |
| Generate Parentheses | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Product of Array Except Self | Medium |
Unique to eBay (50)
Problems in eBay's list that do not appear at IBM.
| Problem | Difficulty |
|---|---|
| Remove One Element to Make the Array Strictly Increasing | Easy |
| Alternating Digit Sum | Easy |
| Binary Gap | Easy |
| Minimize Maximum Pair Sum in Array | Medium |
| Minimum Window Subsequence | Hard |
| Design Skiplist | Hard |
| Subtree of Another Tree | Easy |
| Top K Frequent Elements | Medium |
| Open the Lock | Medium |
| Number of Islands | Medium |
| Binary Tree Cameras | Hard |
| Word Ladder | Hard |
Unique to IBM (103)
Problems in IBM's list that do not appear at eBay.
| Problem | Difficulty |
|---|---|
| Find the Smallest Divisor Given a Threshold | Medium |
| Gray Code | Medium |
| Exclusive Time of Functions | Medium |
| Integer to Roman | Medium |
| Minimum Operations to Make Columns Strictly Increasing | Easy |
| Fizz Buzz | Easy |
| Roman to Integer | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Count Ways to Group Overlapping Ranges | Medium |
| Meeting Rooms II | Medium |
| Rotate Image | Medium |
| Minimum Absolute Difference | Easy |
Frequently Asked Questions
How many LeetCode questions do eBay and IBM share?
eBay and IBM share 12 LeetCode interview questions. 50 problems appear only in eBay's list and 103 appear only in IBM's list.
What topics overlap most between eBay and IBM?
The most common shared topics between eBay and IBM are Array (7 shared questions), String (5 shared questions), Hash Table (4 shared questions), Dynamic Programming (3 shared questions), Sorting (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: eBay or IBM?
eBay has 10 Easy, 39 Medium, and 13 Hard questions. IBM has 33 Easy, 73 Medium, and 9 Hard questions. eBay has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both eBay and IBM?
Start with the 12 shared problems since they cover what both companies ask most often. Then add 20 eBay-specific and 20 IBM-specific questions to round out your prep.