Compiler settings

We use crystal to compile your program with the following command:

$ crystal build {mainfile} -o {executable} --no-color

  • {mainfile} is the entrypoint file (you can specify which file this is when submitting).
  • {executable} is the compiled executable.

File Extensions

Files with any of the following file extensions will be used: .cr

Additional information

Additional language-specific advice and information for many languages is available in the knowledge base