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

Group(), Groups() & Groupdict()

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267 Discussions

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  • obianujuofodu
     + 0 comments

    import re

    S = input()

    fount_it = re.search(r'([a-zA-Z0-9])\1+', S)

    if fount_it: print(fount_it.group(1)) else: print(-1)

  • obianujuofodu
     + 0 comments

    S = input() found_it= False for i in range(len(S)-1): j=S[i] if j.isalnum() is True and S[i+1]==j: found_it = True print(j) break if found_it is False: print(-1)

  • finndemoncat
     + 0 comments

    Using regex

    import re
task = input()

cases = set(re.findall(r"([a-zA-Z0-9])", task))
cases = "".join(cases)

pattern = f"([{cases}])(?=\\1+)"

matches = re.search(pattern, task)

print(matches.group(1) if matches and matches.group(1) else "-1")

  • dilajevolves
     + 0 comments
    s = input()
for i in range(1,len(s)):
    if s[i].isalnum() and s[i] == s[i-1]:
        print(s[i])
        break
else:
    print(-1)

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