Coding interviews are the core of MNC technical rounds. Master problem-solving strategies, time complexity analysis, coding on paper, and learn how to handle pressure in coding interviews at top MNCs.
Coding interviews are where your problem-solving abilities and programming skills are tested in real-time. Whether it's TCS, Infosys, Wipro, or product companies like Amazon and Google, coding interviews are the most critical round.
This guide covers everything you need to master MNC coding interviews: problem-solving strategies, common question patterns, time management, debugging techniques, and proven tips from students who cleared top MNC coding rounds.
Pro Tip: Always ask clarifying questions before coding. "What's the input format?", "Can there be negative numbers?", "What should I return if array is empty?" This shows thorough thinking.
Many MNCs still ask you to write code on paper or whiteboard. This tests your ability to code without IDE support and shows how well you understand the code.
Mistake 1: Not Understanding Problem Fully
Always ask clarifying questions. Don't assume - clarify constraints, input format, edge cases.
Mistake 2: Jumping to Code Without Planning
Discuss approach first. Interviewers want to see your problem-solving process, not just code.
Mistake 3: Not Testing Code
Always test with examples, especially edge cases. Walk through code execution mentally.
Mistake 4: Not Explaining While Coding
Think out loud. Explain what you're doing and why. This is crucial for evaluation.
Mistake 5: Giving Up Too Early
Even if stuck, show your thinking. Ask for hints. Interviewers value persistence and problem-solving approach.
Pro Tip: Use our DSA Quiz tool to test your knowledge and read our DSA Preparation Roadmap for structured learning.
How many coding problems should I solve before interviews?
Aim for 200+ problems covering all major topics. Focus on quality - understand patterns and approaches rather than just solving.
What if I can't solve a problem in the interview?
Don't panic. Think out loud, explain your approach, discuss what you know, and ask for hints. Showing problem-solving process is valuable.
Should I optimize code immediately or start with brute force?
Start with brute force, then optimize. This shows your problem-solving approach. Interviewers value the process.
How important is time complexity in coding interviews?
Very important. Always mention time and space complexity. If asked to optimize, discuss how you can improve it.
Coding interviews test your problem-solving abilities, coding skills, and ability to think under pressure. With consistent practice, proper strategy, and the right mindset, you can ace MNC coding interviews.
Practice daily, think out loud, and use our DSA Quiz and DSA Preparation Roadmap for comprehensive preparation. Good luck! 🚀
Written by Sproutern Career Team
Based on insights from 10,000+ coding interviews and feedback from technical interviewers at top MNCs.
Regularly updated
