Coupang vs DoorDash Interview Questions
Coupang lists 49 LeetCode interview questions while DoorDash lists 78. They share 11 problems — 22% of Coupang's bank and 14% of DoorDash's. Focus on the overlap first, then drill into 38 Coupang-only and 67 DoorDash-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 11 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Coupang and DoorDash.
Step 2 — Company-specific depth: Add Coupang-specific problems like Word Break, Subsets, Decode String and DoorDash-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
11 Shared Questions
High-priority problems to practice for both Coupang and DoorDash.
| Problem | Difficulty |
|---|---|
| LFU Cache | Hard |
| LRU Cache | Medium |
| Course Schedule | Medium |
| Design In-Memory File System | Hard |
| Find K Closest Elements | Medium |
| Basic Calculator II | Medium |
| Number of Islands | Medium |
| Sliding Window Maximum | Hard |
| Group Anagrams | Medium |
| Basic Calculator III | Hard |
| Basic Calculator | Hard |
Unique to Coupang (38)
Problems in Coupang's list that do not appear at DoorDash.
| Problem | Difficulty |
|---|---|
| Word Break | Medium |
| Subsets | Medium |
| Decode String | Medium |
| Longest Substring with At Most K Distinct Characters | Medium |
| Split BST | Medium |
| Range Module | Hard |
| Find Pivot Index | Easy |
| Unique Paths II | Medium |
| Design Twitter | Medium |
| Shopping Offers | Medium |
| Longest Repeating Substring | Medium |
| Unique Paths | Medium |
Unique to DoorDash (67)
Problems in DoorDash's list that do not appear at Coupang.
Frequently Asked Questions
How many LeetCode questions do Coupang and DoorDash share?
Coupang and DoorDash share 11 LeetCode interview questions. 38 problems appear only in Coupang's list and 67 appear only in DoorDash's list.
What topics overlap most between Coupang and DoorDash?
The most common shared topics between Coupang and DoorDash are String (5 shared questions), Hash Table (4 shared questions), Array (4 shared questions), Design (3 shared questions), Sorting (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Coupang or DoorDash?
Coupang has 2 Easy, 33 Medium, and 14 Hard questions. DoorDash has 7 Easy, 45 Medium, and 26 Hard questions. DoorDash has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Coupang and DoorDash?
Start with the 11 shared problems since they cover what both companies ask most often. Then add 20 Coupang-specific and 20 DoorDash-specific questions to round out your prep.