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UMPT Summer 2


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80:26:10

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87:33:50

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-3 days 8:26:10

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Start

2025-05-25 18:00 CEST

End

2025-06-01 18:00 CEST

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UMPT Summer 2

Crystal

Compiler settings

We use crystal 1.15.1 to compile your program with the following command:

$ crystal build {mainfile} -O 2 -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