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  1. Prepare
  2. Python
  3. Regex and Parsing
  4. Group(), Groups() & Groupdict()
  5. Discussions

Group(), Groups() & Groupdict()

  • rejin_gunasekar1
     + 0 comments
    import re
S = input()
m = re.search(r'([a-zA-Z0-9])\1+',S)
print(m.group(1) if m else -1)