Hi everyone!

The fifth round of COCI will be held tomorrow, March 11th at 14:00 UTC. You can access the judging system here. If you are not familiar with COCI contest format, we encourage you to read the announcement.

The round was prepared by dorijanlendvaj, ppavic, jklepec, psruk, mlicul and me.

Feel free to discuss the problems in the comment section after the contest ends.

Hope to see you and good luck!