Cognizant vs Intel Interview Questions
Cognizant lists 29 LeetCode interview questions while Intel lists 25. They share 10 problems — 34% of Cognizant's bank and 40% of Intel's. Focus on the overlap first, then drill into 19 Cognizant-only and 15 Intel-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 Cognizant and Intel.
Step 2 — Company-specific depth: Add Cognizant-specific problems like Count Subarrays of Length Three With a Condition, Smallest Value of the Rearranged Number, Fibonacci Number and Intel-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Intel 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 Cognizant and Intel.
| Problem | Difficulty |
|---|---|
| Palindrome Number | Easy |
| Two Sum | Easy |
| Maximum Subarray | Medium |
| Reverse Integer | Medium |
| Valid Parentheses | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Merge Sorted Array | Easy |
| Count Primes | Medium |
| Merge Two Sorted Lists | Easy |
| Add Two Numbers | Medium |
Unique to Cognizant (19)
Problems in Cognizant's list that do not appear at Intel.
Unique to Intel (15)
Problems in Intel's list that do not appear at Cognizant.
| Problem | Difficulty |
|---|---|
| Trapping Rain Water | Hard |
| Find Consecutive Integers from a Data Stream | Medium |
| Maximum Nesting Depth of the Parentheses | Easy |
| Number of Islands | Medium |
| Copy List with Random Pointer | Medium |
| Best Time to Buy and Sell Stock II | Medium |
| LRU Cache | Medium |
| Climbing Stairs | Easy |
| Reverse Words in a String | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Container With Most Water | Medium |
| Rotate Image | Medium |
Frequently Asked Questions
How many LeetCode questions do Cognizant and Intel share?
Cognizant and Intel share 10 LeetCode interview questions. 19 problems appear only in Cognizant's list and 15 appear only in Intel's list.
What topics overlap most between Cognizant and Intel?
The most common shared topics between Cognizant and Intel are Math (4 shared questions), Array (4 shared questions), Hash Table (2 shared questions), String (2 shared questions), Linked List (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Cognizant or Intel?
Cognizant has 18 Easy, 10 Medium, and 1 Hard questions. Intel has 10 Easy, 14 Medium, and 1 Hard questions. Intel has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Cognizant and Intel?
Start with the 10 shared problems since they cover what both companies ask most often. Then add 19 Cognizant-specific and 15 Intel-specific questions to round out your prep.