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Interview Experience with Cognizant
January 16, 2026 • 7 reads
Summary
I recently had the opportunity to attend an interview process with Cognizant, where my LeetCode-style preparation played a key role.
Full Experience
Recently, I had the opportunity to attend an interview process with Cognizant, and I wanted to share my experience—especially how LeetCode-style preparation played a key role.
🧠 Interview Round Overview
🔹 Technical Interview
- Core DSA concepts (arrays, strings, recursion)
- Problem-solving approach mattered more than syntax
- Follow-up questions on time & space complexity
- Basic CS fundamentals (OOPs, DBMS, OS concepts)
Sample Querstion
Rotate an Array by K Positions(Left and Right)
👉 Input: [1,2,3,4,5], k = 2
👉 Output: [4,5,1,2,3]
Interview Questions (1)
Q1
Rotate Array by K Positions
Data Structures & Algorithms
Rotate an Array by K Positions(Left and Right)
👉 Input: [1,2,3,4,5], k = 2
👉 Output: [4,5,1,2,3]
Preparation Tips
My LeetCode-style preparation played a key role.