Solution: 3Sum
Explore the 3Sum problem by applying the two pointers strategy after sorting the array. Learn to identify unique triplets that sum to zero while avoiding duplicates, and understand the time and space complexities involved. This lesson guides you through a step-by-step solution ideal for coding interviews.
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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...