Coupang vs X Interview Questions
Coupang lists 49 LeetCode interview questions while X lists 51. They share 4 problems — 8% of Coupang's bank and 8% of X's. Focus on the overlap first, then drill into 45 Coupang-only and 47 X-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 4 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Coupang and X.
Step 2 — Company-specific depth: Add Coupang-specific problems like Word Break, Subsets, Decode String and X-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
4 Shared Questions
High-priority problems to practice for both Coupang and X.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Design Twitter | Medium |
| Regular Expression Matching | Hard |
| Wildcard Matching | Hard |
Unique to Coupang (45)
Problems in Coupang's list that do not appear at X.
| Problem | Difficulty |
|---|---|
| Word Break | Medium |
| Subsets | Medium |
| Decode String | Medium |
| LFU Cache | Hard |
| Longest Substring with At Most K Distinct Characters | Medium |
| Split BST | Medium |
| Range Module | Hard |
| Find Pivot Index | Easy |
| Course Schedule | Medium |
| Design In-Memory File System | Hard |
| Unique Paths II | Medium |
| Shopping Offers | Medium |
Unique to X (47)
Problems in X's list that do not appear at Coupang.
| Problem | Difficulty |
|---|---|
| Trapping Rain Water | Hard |
| Merge Intervals | Medium |
| Tweet Counts Per Frequency | Medium |
| Flatten Nested List Iterator | Medium |
| Implement Trie (Prefix Tree) | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Binary Gap | Easy |
| Integer to Roman | Medium |
| Word Break II | Hard |
| Alien Dictionary | Hard |
| Time Needed to Buy Tickets | Easy |
| Valid Parentheses | Easy |
Frequently Asked Questions
How many LeetCode questions do Coupang and X share?
Coupang and X share 4 LeetCode interview questions. 45 problems appear only in Coupang's list and 47 appear only in X's list.
What topics overlap most between Coupang and X?
The most common shared topics between Coupang and X are Hash Table (2 shared questions), Linked List (2 shared questions), Design (2 shared questions), String (2 shared questions), Dynamic Programming (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Coupang or X?
Coupang has 2 Easy, 33 Medium, and 14 Hard questions. X has 8 Easy, 31 Medium, and 12 Hard questions. Coupang has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Coupang and X?
Start with the 4 shared problems since they cover what both companies ask most often. Then add 20 Coupang-specific and 20 X-specific questions to round out your prep.