Hi everyone!

The fifth round of COCI will be held tomorrow, March 16th at 17:00 UTC. Note the unusual time of the competition. 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 ToniB, fbabic, psruk, mlicul, itiamhr and me.

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

Hope to see you and good luck!