Cognizant vs Roblox Interview Questions
Cognizant lists 29 LeetCode interview questions while Roblox lists 56. They share 5 problems — 17% of Cognizant's bank and 9% of Roblox's. Focus on the overlap first, then drill into 24 Cognizant-only and 51 Roblox-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 Cognizant and Roblox.
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 Roblox-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Roblox 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 Cognizant and Roblox.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Longest Common Prefix | Easy |
| Valid Parentheses | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Students and Examinations | Easy |
Unique to Cognizant (24)
Problems in Cognizant's list that do not appear at Roblox.
Unique to Roblox (51)
Problems in Roblox's list that do not appear at Cognizant.
| Problem | Difficulty |
|---|---|
| Candy Crush | Medium |
| Reorganize String | Medium |
| Number of Ways to Wear Different Hats to Each Other | Hard |
| Text Justification | Hard |
| Maximize Distance to Closest Person | Medium |
| Task Scheduler | Medium |
| Course Schedule II | Medium |
| Design Hit Counter | Medium |
| Design Search Autocomplete System | Hard |
| Integer to English Words | Hard |
| Count Number of Nice Subarrays | Medium |
| Group the People Given the Group Size They Belong To | Medium |
Frequently Asked Questions
How many LeetCode questions do Cognizant and Roblox share?
Cognizant and Roblox share 5 LeetCode interview questions. 24 problems appear only in Cognizant's list and 51 appear only in Roblox's list.
What topics overlap most between Cognizant and Roblox?
The most common shared topics between Cognizant and Roblox are String (3 shared questions), Hash Table (2 shared questions), Array (1 shared questions), Trie (1 shared questions), Stack (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Cognizant or Roblox?
Cognizant has 18 Easy, 10 Medium, and 1 Hard questions. Roblox has 8 Easy, 35 Medium, and 13 Hard questions. Roblox has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Cognizant and Roblox?
Start with the 5 shared problems since they cover what both companies ask most often. Then add 20 Cognizant-specific and 20 Roblox-specific questions to round out your prep.