Coupang vs Grammarly Interview Questions
Coupang lists 49 LeetCode interview questions while Grammarly lists 30. They share 3 problems — 6% of Coupang's bank and 10% of Grammarly's. Focus on the overlap first, then drill into 46 Coupang-only and 27 Grammarly-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 3 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Coupang and Grammarly.
Step 2 — Company-specific depth: Add Coupang-specific problems like Subsets, Decode String, LFU Cache and Grammarly-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
3 Shared Questions
High-priority problems to practice for both Coupang and Grammarly.
| Problem | Difficulty |
|---|---|
| Word Break | Medium |
| Unique Paths | Medium |
| Number of Islands | Medium |
Unique to Coupang (46)
Problems in Coupang's list that do not appear at Grammarly.
| Problem | Difficulty |
|---|---|
| Subsets | Medium |
| Decode String | Medium |
| LFU Cache | Hard |
| Longest Substring with At Most K Distinct Characters | Medium |
| LRU Cache | Medium |
| Split BST | Medium |
| Range Module | Hard |
| Find Pivot Index | Easy |
| Course Schedule | Medium |
| Design In-Memory File System | Hard |
| Unique Paths II | Medium |
| Design Twitter | Medium |
Unique to Grammarly (27)
Problems in Grammarly's list that do not appear at Coupang.
| Problem | Difficulty |
|---|---|
| Merge Intervals | Medium |
| Remove All Adjacent Duplicates In String | Easy |
| Search in Rotated Sorted Array | Medium |
| Vowel Spellchecker | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Remove All Adjacent Duplicates in String II | Medium |
| Climbing Stairs | Easy |
| Repeated DNA Sequences | Medium |
| Sqrt(x) | Easy |
| Generate Parentheses | Medium |
| Perfect Number | Easy |
| Logger Rate Limiter | Easy |
Frequently Asked Questions
How many LeetCode questions do Coupang and Grammarly share?
Coupang and Grammarly share 3 LeetCode interview questions. 46 problems appear only in Coupang's list and 27 appear only in Grammarly's list.
What topics overlap most between Coupang and Grammarly?
The most common shared topics between Coupang and Grammarly are Array (2 shared questions), Dynamic Programming (2 shared questions), Hash Table (1 shared questions), String (1 shared questions), Trie (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Coupang or Grammarly?
Coupang has 2 Easy, 33 Medium, and 14 Hard questions. Grammarly has 7 Easy, 19 Medium, and 4 Hard questions. Coupang has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Coupang and Grammarly?
Start with the 3 shared problems since they cover what both companies ask most often. Then add 20 Coupang-specific and 20 Grammarly-specific questions to round out your prep.