0022_Problem_1.bqn

# Problem Link (Practice): https://leetcode.com/problems/k-diff-pairs-in-an-array/

FindPairs ← {+´⥊𝕨=-⌜˜⍷𝕩}

# Tacit / Point Free :)
FindPairs ← (+´⥊)∘(⊣=-⌜˜∘⍷∘⊢)

# Tests
2 FindPairs 3‿1‿4‿1‿5
1 FindPairs 1+↕5