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

Group(), Groups() & Groupdict()

  • n4m774r_d
     + 0 comments
    #Below Python 3.8 :
import re
s = input()    
print(s[re.search(r'([a-zA-Z\d])\1', s).start()]) if re.search(r'([a-zA-Z\d])\1', s) else print("-1")
#Since Python 3.8
print(s[match.start()]) if (match := re.search(r'([a-zA-Z\d])\1', s)) else print("-1")