I would like to invite you to Codeforces Round #417 that will take place tomorrow on June 1st, 2017 at 17:05 MSK.
This is my first round. Great thanks to KAN for his efforts and help in the round preparation, mike_live and gainullin.ildar for testing the problems, and MikeMirzayanov for the awesome Codeforces and Polygon platforms.
The round is rated for the second division. Participants from the first division can take part out of competition. As usual, the participants will be given 5 problems and two hours to solve them.
I hope you will find the problems challenging and interesting!
UPD 1: Scoring disrtibution: 500 — 1000 — 1500 — 2000 — 2500.
UPD 2: Due to a technical issue, the contest is delayed by 10 minutes.
UPD 3: Contest is over. Congratulations to the winners!
UPD 4: Editorial