Coupang vs Walmart Labs Interview Questions
Coupang lists 49 LeetCode interview questions while Walmart Labs lists 144. They share 22 problems — 45% of Coupang's bank and 15% of Walmart Labs's. Focus on the overlap first, then drill into 27 Coupang-only and 122 Walmart Labs-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 22 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Coupang and Walmart Labs.
Step 2 — Company-specific depth: Add Coupang-specific problems like Longest Substring with At Most K Distinct Characters, Split BST, Range Module and Walmart Labs-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Coupang skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
22 Shared Questions
High-priority problems to practice for both Coupang and Walmart Labs.
| Problem | Difficulty |
|---|---|
| Word Break | Medium |
| Subsets | Medium |
| Decode String | Medium |
| LFU Cache | Hard |
| LRU Cache | Medium |
| Course Schedule | Medium |
| Remove K Digits | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Design Hit Counter | Medium |
| Wildcard Matching | Hard |
| Number of Distinct Islands | Medium |
| Basic Calculator II | Medium |
| Number of Islands | Medium |
| Search a 2D Matrix | Medium |
| Sliding Window Maximum | Hard |
| Group Anagrams | Medium |
| Cheapest Flights Within K Stops | Medium |
| Find Median from Data Stream | Hard |
| Bus Routes | Hard |
| Maximum Number of Tasks You Can Assign | Hard |
| Kth Largest Element in an Array | Medium |
| Basic Calculator | Hard |
Unique to Coupang (27)
Problems in Coupang's list that do not appear at Walmart Labs.
| Problem | Difficulty |
|---|---|
| Longest Substring with At Most K Distinct Characters | Medium |
| Split BST | Medium |
| Range Module | Hard |
| Find Pivot Index | Easy |
| Design In-Memory File System | Hard |
| Unique Paths II | Medium |
| Design Twitter | Medium |
| Shopping Offers | Medium |
| Longest Repeating Substring | Medium |
| Unique Paths | Medium |
| Possible Bipartition | Medium |
| Regular Expression Matching | Hard |
Unique to Walmart Labs (122)
Problems in Walmart Labs's list that do not appear at Coupang.
| Problem | Difficulty |
|---|---|
| Valid Parentheses | Easy |
| Two Sum | Easy |
| Trapping Rain Water | Hard |
| Generate Parentheses | Medium |
| Merge Intervals | Medium |
| Search in Rotated Sorted Array | Medium |
| Divide Intervals Into Minimum Number of Groups | Medium |
| Middle of the Linked List | Easy |
| The Winner University | Easy |
| Count Good Triplets in an Array | Hard |
| XOR Operation in an Array | Easy |
| Number of Ways to Separate Numbers | Hard |
Frequently Asked Questions
How many LeetCode questions do Coupang and Walmart Labs share?
Coupang and Walmart Labs share 22 LeetCode interview questions. 27 problems appear only in Coupang's list and 122 appear only in Walmart Labs's list.
What topics overlap most between Coupang and Walmart Labs?
The most common shared topics between Coupang and Walmart Labs are Array (10 shared questions), String (8 shared questions), Hash Table (7 shared questions), Breadth-First Search (5 shared questions), Stack (4 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Coupang or Walmart Labs?
Coupang has 2 Easy, 33 Medium, and 14 Hard questions. Walmart Labs has 22 Easy, 96 Medium, and 26 Hard questions. Coupang has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Coupang and Walmart Labs?
Start with the 22 shared problems since they cover what both companies ask most often. Then add 20 Coupang-specific and 20 Walmart Labs-specific questions to round out your prep.