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3 Sum

Sort the array, fix one value at a time, and use two pointers on the remaining range. Skip duplicate anchors and duplicate pointer values so the result contains unique triplets only.

Coding Exercises Medium O(n^2)

3 Sum

Sort the array, fix one value at a time, and use two pointers on the remaining range. Skip duplicate anchors and duplicate pointer values so the result contains unique triplets only.

Return all unique triplets in an array whose sum is zero.

#arrays #python #sorting #two-pointers