Cognizant vs Samsung Interview Questions
Cognizant lists 29 LeetCode interview questions while Samsung lists 65. They share 9 problems — 31% of Cognizant's bank and 14% of Samsung's. Focus on the overlap first, then drill into 20 Cognizant-only and 56 Samsung-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 9 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Cognizant and Samsung.
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 Samsung-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Samsung skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
9 Shared Questions
High-priority problems to practice for both Cognizant and Samsung.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Longest Palindromic Substring | Medium |
| Longest Common Prefix | Easy |
| Maximum Subarray | Medium |
| Valid Parentheses | Easy |
| Median of Two Sorted Arrays | Hard |
| Merge Sorted Array | Easy |
| 3Sum | Medium |
| Move Zeroes | Easy |
Unique to Cognizant (20)
Problems in Cognizant's list that do not appear at Samsung.
Unique to Samsung (56)
Problems in Samsung's list that do not appear at Cognizant.
Frequently Asked Questions
How many LeetCode questions do Cognizant and Samsung share?
Cognizant and Samsung share 9 LeetCode interview questions. 20 problems appear only in Cognizant's list and 56 appear only in Samsung's list.
What topics overlap most between Cognizant and Samsung?
The most common shared topics between Cognizant and Samsung are Array (6 shared questions), Two Pointers (4 shared questions), String (3 shared questions), Dynamic Programming (2 shared questions), Divide and Conquer (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Cognizant or Samsung?
Cognizant has 18 Easy, 10 Medium, and 1 Hard questions. Samsung has 12 Easy, 36 Medium, and 17 Hard questions. Samsung has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Cognizant and Samsung?
Start with the 9 shared problems since they cover what both companies ask most often. Then add 20 Cognizant-specific and 20 Samsung-specific questions to round out your prep.