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  1. import re
  2.  
  3. pattern = r"(?<!g)(?=(g{3,}(?:[atc](?:g{0,2}[atc])*g{3,}){3}))"
  4. s = ("ggggggcgggggggACGCTCggctcAAGGGCTCCGGGCCCCgggggggACgcgcgAAGGGCTCC \n")
  5. print(re.findall(pattern, s, re.I))
Success #stdin #stdout 0.03s 9616KB
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Standard input is empty
stdout
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['ggggggcgggggggACGCTCggctcAAGGGCTCCGGG', 'gggggggACGCTCggctcAAGGGCTCCGGGCCCCggggggg', 'GGGCTCCGGGCCCCgggggggACgcgcgAAGGG']
https://ideone.com/Zlp7dR
language:
Python 3 (python  3.12)
created:
5 years ago
visibility:
secret

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