We’re thrilled to invite you guys to Codeforces Round #542, which is going to take place on Sunday, February 24, 2019, at 18:35 MSK. There will be a separate round for each division, and they will be rated!
Problems were prepared by MikeMirzayanov, zoomswk and me. As the round authors, we would like to thank ksun48, isaf27, tuna_salad, and Um_nik for testing the problems; 300iq and KAN for their help and advice in contest preparation; and the invisible MikeMirzayanov for the incredible Codeforces and Polygon platforms.
Each division will be given 6 tasks and 2 hours to solve them. As per the Codeforces tradition, scoring distributions will be revealed shortly before the round.
We wish you the greenest verdicts and hope that you’ll enjoy the tasks.
This round is in honor of Alex Lopashev who has supported Codeforces on its anniversary. Some words from MikeMirzayanov:
Alex Lopashev studied at Programming Competitions Training Center (in Saratov U) headed by me. I was really happy (and even proud!) to see his contribution on the 8th anniversary of Codeforces. I am sure that a large number of young people got a lot from our community, even if they did not achieve high results in competitions. It's great that there are those who remember and appreciate it. Thank you, Alex!
UPD1: Shortly after the contest, we'll be on the community Discord server to discuss the tasks.
UPD2: The score distributions are here!
Div2: 500 – 1000 – 1500 – (1000 – 1000) – 2500 – 3000
Div1: 500 – 1000 – 1500 – 2000 – 2500 – 2500
Note that task D of the second division will have subtasks.
UPD3: Last minute corrections T-T
Each division will be given 5 tasks. Also, task A of the first division will have subtasks like the way task D of the second division round do.
Div2: 500 – 1000 – 1500 – (1000 – 1000) – 2500
Div1: (250 – 250) – 1000 – 1500 – 2250 – 2250
UPD4: The Editorial is ready!
Congratulations to the winners!