Cognizant vs Yelp Interview Questions
Cognizant lists 29 LeetCode interview questions while Yelp lists 27. They share 4 problems — 14% of Cognizant's bank and 15% of Yelp's. Focus on the overlap first, then drill into 25 Cognizant-only and 23 Yelp-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 4 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Cognizant and Yelp.
Step 2 — Company-specific depth: Add Cognizant-specific problems like Palindrome Number, Count Subarrays of Length Three With a Condition, Smallest Value of the Rearranged Number and Yelp-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Yelp skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
4 Shared Questions
High-priority problems to practice for both Cognizant and Yelp.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Valid Anagram | Easy |
| Longest Common Prefix | Easy |
| Longest Substring Without Repeating Characters | Medium |
Unique to Cognizant (25)
Problems in Cognizant's list that do not appear at Yelp.
Unique to Yelp (23)
Problems in Yelp's list that do not appear at Cognizant.
Frequently Asked Questions
How many LeetCode questions do Cognizant and Yelp share?
Cognizant and Yelp share 4 LeetCode interview questions. 25 problems appear only in Cognizant's list and 23 appear only in Yelp's list.
What topics overlap most between Cognizant and Yelp?
The most common shared topics between Cognizant and Yelp are Hash Table (3 shared questions), String (3 shared questions), Array (1 shared questions), Sorting (1 shared questions), Trie (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Cognizant or Yelp?
Cognizant has 18 Easy, 10 Medium, and 1 Hard questions. Yelp has 7 Easy, 15 Medium, and 5 Hard questions. Yelp has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Cognizant and Yelp?
Start with the 4 shared problems since they cover what both companies ask most often. Then add 20 Cognizant-specific and 20 Yelp-specific questions to round out your prep.