Problem Format Verification
NB! This page has not been kept up to date. See reference implementation for actual behavour
Determination of Time Limit
The execution time limit for the problem is determined as follows. First, all the provided accepted/ solutions are run. Let tmax be the maximum running time of these solutions on any of the input files. The time limit is then set to be tlim = ⌈tmax · M⌉ where M is the value of the time multiplier parameter from the limits configuration of problem.yaml.
Furthermore, it is required that all of the provided time limit exceeded submissions run for at least tlim · S seconds, where S is the value of the time safety margin parameter from the limits configuration.
Solutions or validators in languages that are not supported by the CCS should be ignored and a warning to that effect shown.
Verification Checks (in order)
- Check files (all files present as required + check problem.yaml)
- Check compile (check that all programs compile)
- Check input (run input validators)
- Check solutions (run all solutions check that they get the expected verdicts)
Warn if: there are no *.in in data/sample/
Error if: there is no problem.yaml there is no problem statement (i.e., a problem*.tex file) any value in problem.yaml is invalid there are no *.in in data/secret/ there are .in files without corresponding .ans files in data/*/ there are .ans files without corresponding .in files in data/*/ there are no solutions in submissions/accepted/ there are no validators in input_format_validators/ validator begins with "custom" and there are no validators in output_validators/ there are validators in output_validators/ and validator does not begin with "custom" any validator (input format or output) does not compile
For each *.in in in data/*/: For each validator in input_format_validators/: If the validator does not accept the input file: Error!
For each solution in test_submissions/accepted/: For each *.in in data/*/: Run the solution on the input For the built-in validator if corrector is "diff" or each validator in output_validators/: If the validator does not accept the output of the solution: Error! Let t be the longest time any of the solutions ran on any of the inputs.
For each solution in submissions/time_limit_exceeded/: For each *.in in data/*/: Run the solution on the input for at least t * time_limit_safety_margin seconds. Let t_slow be the shortest time any of the solutions ran on any of the inputs.
If t_slow is less than t * time_limit_safety_margin: Error!
For each solution in submissions/wrong_answer/: For each *.in in data/*/: Run the solution on the input For the built-in validator if corrector = "diff" or each validator in output_validators/: If the validator accepts the output of the solution: Error!
For each solution in submissions/run_time_error/: For each *.in in data/*/: Run the solution on the input If the solution is not judged Run-Time Error: Error!