Hello / 你好，Codeforces!
We are really excited to invite you to participate in Codeforces Round 1112 (Div. 1) and Codeforces Round 1112 (Div. 2), which will be held on Jul/26/2026 17:35 (Moscow time).
For both division 1 and division 2, you will be given 2.5 hours to solve 6 problems in each division.
The problems were authored and prepared by aaa_Pigeon2, _MCYYDS_, 131241, Oken, and jhvjh.
We would really like to thank the following people for making this round possible:
- Error_Yuan for the great coordination.
- _istil and ukbwyx for optimizing some details of problems.
- tiger2005, StarSilk for black red testing.
- RockyYue, WangYuanyi, _istil, Portulaca, jason_sun, wangmarui, N_z__ for red testing.
- Watersphere, zac2010, _luqyou_, ukbwyx, cdx123456, Arpa, a_little_cute for orange testing.
- yllls, Fa_Nanf1204 for purple testing.
- 1234567890regis, qym110809, wusixuan for blue testing.
- ini_____ for green testing.
- MikeMirzayanov and KAN for the great Codeforces and Polygon platforms.
- You for participating in this round.
The score distribution is as follows:
- Div. 1: $$$750 - 1250 - 1750 - 2250 - (2250 + 1750) - 3500$$$
- Div. 2: $$$500 - 750 - 1500 - 2000 - 2500 - 3000$$$
UPD: Editorial
UPD2: Congratulations to the winners!
Div .1:
Div .2:
