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  1. nestedArray = [[2,3],[3,2],[1,2]]
  2. combinations = set()
  3. for array in nestedArray:
  4.   combination = set()
  5.   combination.add(array[0])
  6.   combination.add(array[1])
  7.   combination = frozenset(combination)
  8.   if not (combination in combinations):
  9.     print("not found")
  10.     combinations.add(combination)
  11.  
  12. print(combinations)
Success #stdin #stdout 0.04s 9604KB
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{frozenset({2, 3}), frozenset({1, 2})}
https://ideone.com/kGgmUb
language:
Python 3 (python  3.9.5)
created:
1 year ago
visibility:
public

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