LeetCode 15 | 3Sum | Java Solution | Two Pointer Approach Explained
Автор: codewithamod
Загружено: 2025-11-05
Просмотров: 25
In this video, we solve LeetCode Problem 15: 3Sum using Java.
We’ll go step-by-step through the sorting + two pointer technique to efficiently find all unique triplets in an array that sum up to zero.
This problem is a classic interview question that tests your understanding of array manipulation, sorting, and pointer strategies.
What you’ll learn:
How to approach the 3Sum problem logically
How to implement the two-pointer technique in Java
How to handle duplicates efficiently
Time and space complexity analysis
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