Compiler settings

We use ghc 8.8.4 to compile your program with the following command:

$ ghc -O2 -ferror-spans -threaded -rtsopts -o {executable} {files}

• {files} is a space-separated list of all files.
• {executable} is the compiled executable.

Runtime settings

We run your program with the following command:

$ {executable} +RTS -M{memlim}m -RTS

• {executable} is the compiled executable.
• {memlim} is the actual memory limit for the problem you are submitting to.

File Extensions

Files with any of the following file extensions will be used: .hs, .c

Additional information

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