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3Sum

Explore the 3Sum problem where you find unique triplets in an array that sum to zero by applying the two pointers approach. This lesson helps you understand the problem constraints, visualize the logic, and implement an optimized linear solution using two pointers for coding interviews.

Statement

Given an integer array, nums, find and return all unique triplets [nums[i], nums[j], nums[k]], such that i \neq j, i \neq ...