This Sunday will take place All-Russian olympiad for students of 5-8 grades, in the name of Keldysh. Good luck to all the participants! Olympiad is conducted under the guidance of the Moscow Olympiad Scientific Committee, in particular GlebsHP, ch_egor, Endagorion, vintage_Vlad_Makeev, Zlobober, meshanya, cdkrot, voidmax, grphil, fedoseev.timofey and, of course, Helen Andreeva.
We are happy to announce the Codeforces Round #802 based on the problems of this olympiad! It will be a Div. 2 round, which will take place at Jun/19/2022 12:05 (Moscow time). You might have already participated in rounds based on the school olympiads, prepared by Moscow Olympiad Scientific Committee (rounds 327, 342, 345, 376, 401, 433, 441, 466, 469, 507, 516, 541, 545, 567, 583, 594, 622, 626, 657, 680, 704, 707, 727, 751, 775). Please notice the unusual time.
The problems of this olympiad were prepared by Siberian, _overrated_, Igorbunov, Ziware, talant, Olerinskiy under the supervision of fedoseev.timofey.
Thanks to 74TrAkToR for their help in organizing the Codeforces version of this contest and one of the problems, MikeMirzayanov for the Codeforces and Polygon.
Also I would like to thank the Tinkoff company and personally Tatyana TKolinkova Kolinkova for great help with organizing the competition.
Thanks to NEAR for supporting this round, details can be found in this post.
UPD1: Thanks to Um_nik, 244mhq, Shakespear31, _shakespeare_, TeaTime, devid, Mangooste for testing.
UPD2: Scoring distribution: 500 — 1000 — 1500 — 1750 — 2500 — 3000
Div. 1 + Div. 2: