Solution: 3Sum
Explore the method to find all unique triplets in an array that sum to zero by applying the two pointers technique. Learn a step-by-step approach including sorting, skipping duplicates, and adjusting pointers to optimize the search. Understand the time and space complexity involved, enabling you to solve this common coding interview problem confidently.
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Statement
Given an integer array nums, find all unique triplets [nums[i], nums[j], nums[k]] where i, j, and k are distinct indices, such that the three elements sum to zero.
The result must not contain any duplicate triplets. The order of the output and the order of elements within each triplet does not matter.
Note: The solution set must only include unique triplets. Two triplets are considered duplicates if they contain the same elements regardless of ordering.
Constraints:
nums.length...