Support

Email is our only support channel.

Contact us

Write to [email protected]. Check the FAQ first, it may already have your answer.

What to include in a report

  • The email address of your account
  • The challenge name and the language you chose
  • The submission ID or the time of the submission (with your time zone)
  • What you expected and what happened, including any error message
  • For CLI problems: the CLI version, your operating system and your Docker version