Longest Consecutive Sequence + Set Matrix Zeroes | LeetCode Medium 2 #2025

In this video, we solve two important LeetCode Medium problems that are frequently asked in coding interviews:

✅ LC 128 – Longest Consecutive Sequence
→ Learn how to use HashSet to achieve O(n) time complexity.
→ Understand optimal logic instead of sorting.

✅ LC 73 – Set Matrix Zeroes
→ Master matrix manipulation problems.
→ Learn space optimization techniques.

This video is part of my DSA from 0 to Advanced series where I explain concepts clearly for beginners and interview preparation.

If you're preparing for product-based companies, service-based companies, or campus placements, this series will help you build strong problem-solving skills step by step.

🔥 Watch till the end for clean Java implementation and interview tips.

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Видео Longest Consecutive Sequence + Set Matrix Zeroes | LeetCode Medium 2 #2025 канала DC DSA Academy