ByteDance vs Coupang Interview Questions
ByteDance lists 64 LeetCode interview questions while Coupang lists 49. They share 15 problems — 23% of ByteDance's bank and 31% of Coupang's. Focus on the overlap first, then drill into 49 ByteDance-only and 34 Coupang-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 15 overlapping problems first. These are the highest-yield questions for candidates interviewing at both ByteDance and Coupang.
Step 2 — Company-specific depth: Add ByteDance-specific problems like Remove Duplicate Letters, Smallest Subsequence of Distinct Characters, First Day Where You Have Been in All the Rooms and Coupang-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
15 Shared Questions
High-priority problems to practice for both ByteDance and Coupang.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Number of Islands | Medium |
| Course Schedule | Medium |
| Basic Calculator II | Medium |
| Shortest Bridge | Medium |
| Regular Expression Matching | Hard |
| Basic Calculator | Hard |
| Decode String | Medium |
| Single Element in a Sorted Array | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Kth Largest Element in an Array | Medium |
| Subsets | Medium |
| Remove K Digits | Medium |
| Sliding Window Maximum | Hard |
| Unique Paths | Medium |
Unique to ByteDance (49)
Problems in ByteDance's list that do not appear at Coupang.
| Problem | Difficulty |
|---|---|
| Remove Duplicate Letters | Medium |
| Smallest Subsequence of Distinct Characters | Medium |
| First Day Where You Have Been in All the Rooms | Medium |
| Combination Sum | Medium |
| Merge Intervals | Medium |
| House Robber | Medium |
| Maximal Square | Medium |
| Top K Frequent Elements | Medium |
| Design Memory Allocator | Medium |
| Two Sum | Easy |
| Word Ladder | Hard |
| Longest Increasing Subsequence | Medium |
Unique to Coupang (34)
Problems in Coupang's list that do not appear at ByteDance.
| Problem | Difficulty |
|---|---|
| Word Break | Medium |
| LFU Cache | Hard |
| 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 |
| Possible Bipartition | Medium |
Frequently Asked Questions
How many LeetCode questions do ByteDance and Coupang share?
ByteDance and Coupang share 15 LeetCode interview questions. 49 problems appear only in ByteDance's list and 34 appear only in Coupang's list.
What topics overlap most between ByteDance and Coupang?
The most common shared topics between ByteDance and Coupang are Array (6 shared questions), String (6 shared questions), Stack (4 shared questions), Depth-First Search (3 shared questions), Breadth-First Search (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: ByteDance or Coupang?
ByteDance has 4 Easy, 51 Medium, and 9 Hard questions. Coupang has 2 Easy, 33 Medium, and 14 Hard questions. Coupang has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both ByteDance and Coupang?
Start with the 15 shared problems since they cover what both companies ask most often. Then add 20 ByteDance-specific and 20 Coupang-specific questions to round out your prep.