Solution: 3Sum
Explore how to solve the 3Sum problem by finding all unique triplets in an integer array that sum to zero. Learn to apply the two pointer technique on a sorted array, skip duplicates, and efficiently identify solutions while understanding time and space complexity trade-offs.
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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...