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Tata Consultancy Services

Part of Tata Group

Engaged Employer

Tata Consultancy Services Interview Question

👉 “Solve a coding/DSA problem live and explain your thought process.” Why? Because it tests: Problem-solving skills (can you break down a problem logically?) Coding ability (clean, bug-free, efficient code) Communication (do you explain what you’re thinking, not just dump code?) Optimization mindset (can you improve brute force to optimal?) Even if they ask about projects, system design, or CS fundamentals, some form of live coding problem is the core unavoidable part.

Interview Answer

Anonymous

Aug 17, 2025

1. Clarify – Repeat the problem, confirm constraints & edge cases. 2. Explain thought process – Start with brute force, then move to optimized. 3. State complexity – Time & space before coding. 4. Code cleanly – Write readable, structured code. 5. Dry run – Walk through with an example. 6. Summarize – Reconfirm correctness + complexity. Basically: Think out loud, code clearly, test, and wrap up.