Judging Troubles

Limits 1s, 512 MB

The NWERC organisers have decided that they want toimprove the automatic grading of the submissions forthe contest, so they now use two systems: DOMjudgeand Kattis. Each submission is judged by both systemsand the grading results are compared to make sure thatthe systems agree. However, something went wrongin setting up the connection between the systems, andnow the jury only knows all results of both systems, butnot which result belongs to which submission! You aretherefore asked to help them figure out how many results could have been consistent.

This is a companion discussion topic for the original entry at https://toph.co/p/judging-troubles