Coupang vs ServiceNow Interview Questions
Coupang lists 49 LeetCode interview questions while ServiceNow lists 71. They share 10 problems — 20% of Coupang's bank and 14% of ServiceNow's. Focus on the overlap first, then drill into 39 Coupang-only and 61 ServiceNow-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 Coupang and ServiceNow.
Step 2 — Company-specific depth: Add Coupang-specific problems like Word Break, Subsets, Decode String and ServiceNow-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 Coupang and ServiceNow.
| Problem | Difficulty |
|---|---|
| LFU Cache | Hard |
| LRU Cache | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Number of Distinct Islands | Medium |
| Number of Islands | Medium |
| Single Element in a Sorted Array | Medium |
| Sliding Window Maximum | Hard |
| Group Anagrams | Medium |
| Pacific Atlantic Water Flow | Medium |
| Kth Largest Element in an Array | Medium |
Unique to Coupang (39)
Problems in Coupang's list that do not appear at ServiceNow.
| Problem | Difficulty |
|---|---|
| Word Break | Medium |
| Subsets | Medium |
| Decode String | Medium |
| 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 |
| Design Twitter | Medium |
| Shopping Offers | Medium |
Unique to ServiceNow (61)
Problems in ServiceNow's list that do not appear at Coupang.
Frequently Asked Questions
How many LeetCode questions do Coupang and ServiceNow share?
Coupang and ServiceNow share 10 LeetCode interview questions. 39 problems appear only in Coupang's list and 61 appear only in ServiceNow's list.
What topics overlap most between Coupang and ServiceNow?
The most common shared topics between Coupang and ServiceNow are Array (6 shared questions), Hash Table (5 shared questions), Depth-First Search (3 shared questions), Breadth-First Search (3 shared questions), Linked List (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Coupang or ServiceNow?
Coupang has 2 Easy, 33 Medium, and 14 Hard questions. ServiceNow has 7 Easy, 51 Medium, and 13 Hard questions. Coupang has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Coupang and ServiceNow?
Start with the 10 shared problems since they cover what both companies ask most often. Then add 20 Coupang-specific and 20 ServiceNow-specific questions to round out your prep.