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problem-package-format 2025-09#3106
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Kevinjil commentedSep 19, 2025
- Removed scoring objective; this now always is "maximize".
- Removed scoring keyword from problem.yaml.
- Python 3 is now used for .py files; for backward compatibility .py2 can still be used for Python 2.
- Clarify various things: sample files for interactive problems, testdata.yaml inheritance.
- Updated the CC BY-SA license key to mean version 4.0.
- Allow either a build or run script to be present.
- Change specification of time limit multipliers and allow to explicitly specify a problem time limit.
- Add the problem types multi-pass and submit-answer.
- Add static validators, validators whose input is submission source code.
- Support invalid testdata that validators must fail on.
- Only allow a single output validator, remove validator_flags from problem.yaml, update {input,output}_validator_flags in testdata.yaml.
- Make name required and allow a map from language code to name in that language.
- Add uuid to problem.yaml.
- Add languages to problem.yaml.
- Add support for Markdown problem statements.
- Change languages: and keywords: in problem.yaml to be lists of strings rather than a string of space separated words.
- Clarified when code limit is applied in the case of included code
- Make uuid required in problem.yaml.
- Add /submissions/rejected directory.
- Clarify working directories for submissions and validators.
- Add allow_writing_files to problem.yaml.
- Rename testdata.yaml to test_group.yaml.
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