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  1. lst = [1, 2, 3, 2, 2]
  2. s = set()
  3. print(list([(s.add(x) or x) for x in lst if x not in s]))
Success #stdin #stdout 0.02s 27704KB
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Standard input is empty
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[1, 2, 3]
https://ideone.com/8ZGZX0
language:
Python 3 (python  3.9.5)
created:
5 years ago
visibility:
public

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