Airbnb vs Cognizant Interview Questions
Airbnb lists 63 LeetCode interview questions while Cognizant lists 29. They share 5 problems — 8% of Airbnb's bank and 17% of Cognizant's. Focus on the overlap first, then drill into 58 Airbnb-only and 24 Cognizant-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 5 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Airbnb and Cognizant.
Step 2 — Company-specific depth: Add Airbnb-specific problems like Text Justification, Maximum Profit in Job Scheduling, Flatten 2D Vector and Cognizant-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Airbnb skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
5 Shared Questions
High-priority problems to practice for both Airbnb and Cognizant.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Add Two Numbers | Medium |
| Valid Parentheses | Easy |
| Happy Number | Easy |
| Maximum Subarray | Medium |
Unique to Airbnb (58)
Problems in Airbnb's list that do not appear at Cognizant.
| Problem | Difficulty |
|---|---|
| Text Justification | Hard |
| Maximum Profit in Job Scheduling | Hard |
| Flatten 2D Vector | Medium |
| Smallest Common Region | Medium |
| Palindrome Pairs | Hard |
| Maximum Candies You Can Get from Boxes | Hard |
| Pour Water | Medium |
| Sliding Puzzle | Hard |
| Design Excel Sum Formula | Hard |
| Intersection of Two Linked Lists | Easy |
| Trapping Rain Water | Hard |
| Alien Dictionary | Hard |
Unique to Cognizant (24)
Problems in Cognizant's list that do not appear at Airbnb.
Frequently Asked Questions
How many LeetCode questions do Airbnb and Cognizant share?
Airbnb and Cognizant share 5 LeetCode interview questions. 58 problems appear only in Airbnb's list and 24 appear only in Cognizant's list.
What topics overlap most between Airbnb and Cognizant?
The most common shared topics between Airbnb and Cognizant are Array (2 shared questions), Hash Table (2 shared questions), Math (2 shared questions), Linked List (1 shared questions), Recursion (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Airbnb or Cognizant?
Airbnb has 11 Easy, 31 Medium, and 21 Hard questions. Cognizant has 18 Easy, 10 Medium, and 1 Hard questions. Airbnb has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Airbnb and Cognizant?
Start with the 5 shared problems since they cover what both companies ask most often. Then add 20 Airbnb-specific and 20 Cognizant-specific questions to round out your prep.