• Sign Up
    Time to claim your honor
  • Training
  • Practice
    Complete challenging Kata to earn honor and ranks. Re-train to hone technique
  • Freestyle Sparring
    Take turns remixing and refactoring others code through Kumite
  • Community
  • Leaderboards
    Achieve honor and move up the global leaderboards
  • Chat
    Join our Discord server and chat with your fellow code warriors
  • Discussions
    View our Github Discussions board to discuss general Codewars topics
  • About
  • Docs
    Learn about all of the different aspects of Codewars
  • Blog
    Read the latest news from Codewars and the community
  • Log In
  • Sign Up
custom_concern Avatar
Name:Unknown
Clan:Unknown
Member Since:Dec 2019
Last Seen:May 2025
Profiles:
    Following:6
    Followers:6
    Allies:0
    View Profile Badges
    • Stats
    • Kata
    • Collections
    • Kumite
    • Social
    • Discourse
    • Conversations (32)
    • Replies
    • Authored
    • Needs Resolution
    • Custom User Avatar
      • custom_concern
      • commented on "Name to Matrix" kata
      • 23 days ago

      very average-to-simple 6 kyu imo. you might just be stuck. (not saying this to be an ass -- just, if it helps, you might be overthinking it and there are simple solutions.)

    • Custom User Avatar
      • custom_concern
      • created an issue for "Features of a Given Array" kata
      • last month

      reference solution sometimes returns No decreasing sequence for the longest increasing subsequence method, and sometimes returns No increasing sequence for the longest decreasing subsequence method.

    • Custom User Avatar
      • KURGXN
      • commented on "Sum Strings as Numbers" python solution
      • 2 months ago

      wow, so clean

    • Custom User Avatar
      • dfhwze
      • commented on "Fastest Code : A*B=C" python solution
      • 3 months ago

      The only solution that survived test case generation improvements.

    • Custom User Avatar
      • taher_el_mehdi
      • commented on ""com", "gov", "org" first" kata
      • 6 months ago

      To solve this problem, you need to focus on two key aspects:

      1. Extracting the TLD from a URL
      2. Sorting by Priority
    • Custom User Avatar
      • custom_concern
      • commented on ""com", "gov", "org" first" kata
      • 6 months ago

      this is unintelligible.

    • Custom User Avatar
      • Alyssis008
      • commented on "Common Denominators" python solution
      • 10 months ago

      this is almost my solution no way bruh

    • Custom User Avatar
      • DenisTk
      • commented on "Sum Strings as Numbers" python solution
      • 11 months ago

      what does mean x or '0'?

    • Custom User Avatar
      • KarmiTenchi
      • commented on "Sum Strings as Numbers" python solution
      • 15 months ago

      and there it was. a whole library that fixes the problem in no time, shitting on my algorithm that timed out 10 different times

    • Custom User Avatar
      • geoffp
      • commented on "Tiptoe through the circles" kata
      • 15 months ago

      It'll feel good when you beat it though. :)

    • Custom User Avatar
      • custom_concern
      • commented on "Tiptoe through the circles" kata
      • 15 months ago

      this one is an absolute beast. it has kicked me in the pants at least five times now, causing me to scrap refactoring and start fresh again and again. i wish i had to mark this comment as including spoiler content lol. but it's just a note of desperation.

    • Custom User Avatar
      • custom_concern
      • commented on "Array Product (Sans n)" python solution
      • 15 months ago

      yes. apparently the tests don't catch O(n^2) solutions despite the description.

    • Custom User Avatar
      • custom_concern
      • commented on "[Code Golf] Rotate The Dial" kata
      • 16 months ago

      100%. there are plenty of unoriginal, poorly constructed/described/tested katas on here. this is clearly not one of them. it's a disservice to the community and the authors not to differentiate the good stuff from the bad by voting rationally.

    • Custom User Avatar
      • custom_concern
      • commented on "N in a row" kata
      • 16 months ago

      man, this isn't your daddy's 6 kyu kata lol. good one tho.

    • Custom User Avatar
      • lechevalier
      • commented on "Sum Strings as Numbers" python solution
      • 17 months ago

      Should be used as referee as it is the fastest solution.
      Or gmpy2 should be forbidden as BigInt is forbidden in Java.

    • Loading more items...
    • © 2025 Codewars
    • About
    • API
    • Blog
    • Privacy
    • Terms
    • Code of Conduct
    • Contact

    Confirm

    • Cancel
    • Confirm

    Collect: undefined

    Loading collection data...