DoorDash vs eBay Interview Questions
DoorDash lists 78 LeetCode interview questions while eBay lists 62. They share 12 problems — 15% of DoorDash's bank and 19% of eBay's. Focus on the overlap first, then drill into 66 DoorDash-only and 50 eBay-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 DoorDash and eBay.
Step 2 — Company-specific depth: Add DoorDash-specific problems like Longest Increasing Path in a Matrix, Binary Tree Maximum Path Sum, Search Suggestions System and eBay-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: DoorDash 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 DoorDash and eBay.
| Problem | Difficulty |
|---|---|
| Walls and Gates | Medium |
| Two Sum | Easy |
| Number of Islands | Medium |
| Course Schedule | Medium |
| Sudoku Solver | Hard |
| LRU Cache | Medium |
| Merge k Sorted Lists | Hard |
| Merge Intervals | Medium |
| Jump Game II | Medium |
| Group Anagrams | Medium |
| Longest Palindromic Substring | Medium |
| Rotting Oranges | Medium |
Unique to DoorDash (66)
Problems in DoorDash's list that do not appear at eBay.
Unique to eBay (50)
Problems in eBay's list that do not appear at DoorDash.
| Problem | Difficulty |
|---|---|
| Remove One Element to Make the Array Strictly Increasing | Easy |
| Alternating Digit Sum | Easy |
| Partition Equal Subset Sum | Medium |
| Binary Gap | Easy |
| Minimize Maximum Pair Sum in Array | Medium |
| Minimum Window Subsequence | Hard |
| Design Skiplist | Hard |
| Subtree of Another Tree | Easy |
| Spiral Matrix | Medium |
| Top K Frequent Elements | Medium |
| Open the Lock | Medium |
| Binary Tree Cameras | Hard |
Frequently Asked Questions
How many LeetCode questions do DoorDash and eBay share?
DoorDash and eBay share 12 LeetCode interview questions. 66 problems appear only in DoorDash's list and 50 appear only in eBay's list.
What topics overlap most between DoorDash and eBay?
The most common shared topics between DoorDash and eBay are Array (8 shared questions), Breadth-First Search (4 shared questions), Matrix (4 shared questions), Hash Table (4 shared questions), Depth-First Search (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: DoorDash or eBay?
DoorDash has 7 Easy, 45 Medium, and 26 Hard questions. eBay has 10 Easy, 39 Medium, and 13 Hard questions. DoorDash has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both DoorDash and eBay?
Start with the 12 shared problems since they cover what both companies ask most often. Then add 20 DoorDash-specific and 20 eBay-specific questions to round out your prep.