Cognizant vs Meta Interview Questions
Cognizant lists 29 LeetCode interview questions while Meta lists 217. They share 17 problems — 59% of Cognizant's bank and 8% of Meta's. Focus on the overlap first, then drill into 12 Cognizant-only and 200 Meta-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 17 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Cognizant and Meta.
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 Meta-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Meta skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
17 Shared Questions
High-priority problems to practice for both Cognizant and Meta.
| Problem | Difficulty |
|---|---|
| Palindrome Number | Easy |
| Two Sum | Easy |
| Longest Palindromic Substring | Medium |
| Remove Duplicates from Sorted Array | Easy |
| Longest Common Prefix | Easy |
| Managers with at Least 5 Direct Reports | Medium |
| Maximum Subarray | Medium |
| Reverse Integer | Medium |
| Valid Parentheses | Easy |
| Median of Two Sorted Arrays | Hard |
| Longest Substring Without Repeating Characters | Medium |
| Merge Sorted Array | Easy |
| 3Sum | Medium |
| Move Zeroes | Easy |
| Merge Two Sorted Lists | Easy |
| Add Two Numbers | Medium |
| Search Insert Position | Easy |
Unique to Cognizant (12)
Problems in Cognizant's list that do not appear at Meta.
| Problem | Difficulty |
|---|---|
| Count Subarrays of Length Three With a Condition | Easy |
| Smallest Value of the Rearranged Number | Medium |
| Fibonacci Number | Easy |
| Valid Anagram | Easy |
| Second Highest Salary | Medium |
| Product Sales Analysis I | Easy |
| Count Primes | Medium |
| Happy Number | Easy |
| Binary Search | Easy |
| Fizz Buzz | Easy |
| Rising Temperature | Easy |
| Students and Examinations | Easy |
Unique to Meta (200)
Problems in Meta's list that do not appear at Cognizant.
| Problem | Difficulty |
|---|---|
| Minimum Remove to Make Valid Parentheses | Medium |
| Valid Word Abbreviation | Easy |
| Binary Tree Vertical Order Traversal | Medium |
| Valid Palindrome II | Easy |
| Lowest Common Ancestor of a Binary Tree III | Medium |
| Kth Largest Element in an Array | Medium |
| Pow(x, n) | Medium |
| Binary Tree Right Side View | Medium |
| Simplify Path | Medium |
| Merge Intervals | Medium |
| Basic Calculator II | Medium |
| Lowest Common Ancestor of a Binary Tree | Medium |
Frequently Asked Questions
How many LeetCode questions do Cognizant and Meta share?
Cognizant and Meta share 17 LeetCode interview questions. 12 problems appear only in Cognizant's list and 200 appear only in Meta's list.
What topics overlap most between Cognizant and Meta?
The most common shared topics between Cognizant and Meta are Array (8 shared questions), Two Pointers (5 shared questions), String (4 shared questions), Math (3 shared questions), Hash Table (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Cognizant or Meta?
Cognizant has 18 Easy, 10 Medium, and 1 Hard questions. Meta has 52 Easy, 132 Medium, and 33 Hard questions. Meta has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Cognizant and Meta?
Start with the 17 shared problems since they cover what both companies ask most often. Then add 12 Cognizant-specific and 20 Meta-specific questions to round out your prep.