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  1. import re
  2.  
  3. strings = [
  4.     "aaaa**!!!cccc333**",
  5.     "aaabbbbaaa",
  6.     "aaabbbbbbaaa****ccc",
  7.     "!!! aaaabbbaaa ccc!!!"
  8. ]
  9. pattern = r"(\S)\1{3,}|(\S)\2{2}"
  10. for s in strings:
  11.     matches = re.finditer(pattern, s)
  12.     result = []
  13.     for matchNum, match in enumerate(matches, start=1):
  14.         if match.group(2):
  15.             result.append(match.group(2))
  16.     print(result)
Success #stdin #stdout 0.03s 9424KB
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Standard input is empty
stdout
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['!', '3']
['a', 'a']
['a', 'a', 'c']
['!', 'b', 'a', 'c', '!']
https://ideone.com/iOYh6n
language:
Python 3 (python  3.12)
created:
3 years ago
visibility:
public

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