Ciao, Codeforces! We're glad to invite you to take part in Codeforces Round 889 (Div. 1) and Codeforces Round 889 (Div. 2), which will start on Jul/29/2023 17:35 (Moscow time). You will be given 6 problems and 2 hours and 30 minutes to solve them in both divisions.

• One of the problems will be divided into two subtasks.
• One of the problems will be interactive, so please read the guide for interactive problems if you are not familiar with it.

The problems were authored and prepared by akifpatel, dario2994, Kaey and me.

We would like to thank

• dario2994 for his energetic coordination;
• Alexdat2000 for Russian translation;
• Vladithur, errorgorn for VIP testing;
• ALeonidou, antontrygubO_o, buffering, cry, emorgan, jamesbamber, MatteoArcari, MrBrionix, MyK_00L, pwned, zamong_juice for testing;
• MikeMirzayanov for creating Codeforces and Polygon.

Score distribution:

• Div. 1: $$$(750 + 750) - 1500 - 1500 - 2000 - 2750 - 3250$$$
• Div. 2: $$$500 - 1000 - (1250 + 1250) - 2500 - 2500 - 3000$$$

We hope you'll like the problemset!

Update 1: the editorial is out.

Update 2: congratulations to the winners!