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  1. import re
  2. for s in ("classss", "oooooops", "foooobooo"):
  3.     print(re.sub(r'(\w)\1\1+', r'\1\1', s))
Success #stdin #stdout 0.02s 9532KB
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stdin
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Standard input is empty
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class
oops
fooboo
https://ideone.com/lGNVGZ
language:
Python 3 (python  3.12)
created:
6 years ago
visibility:
public

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