Cisco vs Coupang Interview Questions
Cisco lists 87 LeetCode interview questions while Coupang lists 49. They share 10 problems — 11% of Cisco's bank and 20% of Coupang's. Focus on the overlap first, then drill into 77 Cisco-only and 39 Coupang-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 10 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Cisco and Coupang.
Step 2 — Company-specific depth: Add Cisco-specific problems like Longest Palindromic Substring, House Robber, Predict the Winner 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
10 Shared Questions
High-priority problems to practice for both Cisco and Coupang.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Decode String | Medium |
| Number of Islands | Medium |
| Search a 2D Matrix | Medium |
| Group Anagrams | Medium |
| Unique Paths | Medium |
| Unique Paths II | Medium |
| Remove K Digits | Medium |
| Sliding Window Maximum | Hard |
Unique to Cisco (77)
Problems in Cisco's list that do not appear at Coupang.
| Problem | Difficulty |
|---|---|
| Longest Palindromic Substring | Medium |
| House Robber | Medium |
| Predict the Winner | Medium |
| Lucky Numbers in a Matrix | Easy |
| Rotate Image | Medium |
| Spiral Matrix | Medium |
| Fizz Buzz | Easy |
| Snakes and Ladders | Medium |
| Number of Valid Words in a Sentence | Easy |
| Maximum Difference Between Increasing Elements | Easy |
| Merge Intervals | Medium |
| Find Third Transaction | Medium |
Unique to Coupang (39)
Problems in Coupang's list that do not appear at Cisco.
| Problem | Difficulty |
|---|---|
| Word Break | Medium |
| Subsets | 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 |
| Design Twitter | Medium |
| Shopping Offers | Medium |
| Longest Repeating Substring | Medium |
Frequently Asked Questions
How many LeetCode questions do Cisco and Coupang share?
Cisco and Coupang share 10 LeetCode interview questions. 77 problems appear only in Cisco's list and 39 appear only in Coupang's list.
What topics overlap most between Cisco and Coupang?
The most common shared topics between Cisco and Coupang are Array (5 shared questions), String (4 shared questions), Hash Table (3 shared questions), Matrix (3 shared questions), Sliding Window (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Cisco or Coupang?
Cisco has 24 Easy, 50 Medium, and 13 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 Cisco and Coupang?
Start with the 10 shared problems since they cover what both companies ask most often. Then add 20 Cisco-specific and 20 Coupang-specific questions to round out your prep.