Presentation Error, PE
English name: Presentation Error, PE
An error is diagnosed when the result output by the program does not match the output format specified in the condition. The difference between an incorrect result format error and an incorrect answer cannot be described unambiguously in all cases. In practice, an incorrect result format error is usually diagnosed in cases where the checking program was unable, for one reason or another, to extract the answer from the output file. For example, the output file was empty or contained some text instead of a single number.