Welcome to the fourth competitive contest of the year!

You have 30 minutes to solve three problems of increasing difficulty. Each problem is worth a total of ~100~ points, and there is a bonus of ~20~ points for solving on the first try. In addition, for every minute you submit before the end of the contest, there will be a ~1~ point time bonus.

These problems will revolve around the topics we covered last week (Basic Graph Theory).

Starting from this contest, there will be an access code, which you will receive only if you come to the meeting.

Good luck!