We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
  1. Prepare
  2. Python
  3. Regex and Parsing
  4. Group(), Groups() & Groupdict()
  5. Discussions

Group(), Groups() & Groupdict()

Sort by

recency

|

265 Discussions

|

  • 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)

  • shanukadsamaran1
     + 0 comments

    word = input() for i in word: if i.isalnum(): y = i+i if y in word: print(i) break else: print(-1)

  • mohamedhari317
     + 0 comments
    import re
m=re.search(r"([a-zA-Z0-9])\1+",input())
if m:
    print(m.group(1))
else:
    print(-1)