The round will be rated for both divisions. Each division will have 6 problems and 2.5 hours to solve them. There may or may not be an interactive problem, so I suggest you should read the guide for interactive problems.
And thanks to QAQAutoMaton, gamegame, starusc, interestingLSY, chenkuowen, DataStructures, 1-gon, ijxjdjd, Schwarzenegger, sunsiyu, Nezzar, senyaa, TheOneYouWant, gyz_gyz, kimoyami, njupt_lyy, 221, growup974, Manik, absi2011, gyh20, errorgorn, antontrygubO_o, oolimry, zhangzx123, m371, Proszek_na_ludka, SonDinh, triple__a, Pecco, AzusaCat, dorijanlendvaj, Imakf, Forever_Pursuit, JAMMY for testing and good advice, isaf27 for his excellent round coordination and help with preparation and MikeMirzayanov for great systems Codeforces and Polygon.And you, for participating!
This is my first round ever. Great efforts have been put in during the past six months. We are sincerely looking forward to your participation. We hope everyone will enjoy it.
UPD1: Here's the score distribution:
Div 1: 500 — 1000 — 1500 — 2250 — (2000+2000) — 4000
Div 2: 500 — 1000 — 1250 — 1750 — 2250 — 3000
UPD2: Sorry to everyone! This is my first round and I spent lots of time to prepare it. I prepared at least 23 problems, and chose these eight ones for this round. I invited 35 testers to test, and chose problems according to their feedback. However, the difficulty is more than expect.And the pretest is not strong, leading to FST for many people. I blamed myself sadly. So I must say sorry to you, my dear friends. I will improve myself in the future. Wish you good luck and happy everyday. (๑•ᴗ•๑)
UPD3: Tutorial is available.
UPD4: Congratulations to the winners