Remove Duplicates from Sorted Array | Java | Set Approach | Two Pointer Approach | DSA Made Easy

Published: 21 May 2025
on channel: codewithme
43
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Struggling with LeetCode Problem #26: Remove Duplicates from Sorted Array?
In this video, I walk you through two solid approaches to crack this problem efficiently using Java:

✅ Naive Approach using Set to understand the basics
✅ Optimal In-Place Solution using the Two Pointer Technique (space optimized)

This is a must-know pattern for coding interviews and DSA practice.

Timestamps:
00:00 – Intro
00:42 – Problem Statement Explanation
02:00 - Examples
02:50 – Set-Based (Naive) Approach
04:42 – Time & Space Complexity of Set Approach
05:10 – Two Pointer Approach Explained
05:35 – Dry Run and Output
08:42 – Final Time & Space Complexity
09:00 – Wrap-Up & Key Takeaways

What You’ll Learn:
Step-by-step breakdown of two methods
Writing clean, efficient Java code
Space vs Time trade-offs
Tips for tackling in-place array problems

If you're preparing for technical interviews or building a solid foundation in DSA, this video is for you.

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