Hello, Codeforces!↵
↵
We are happy to invite you Baozii Cup 3, which will take place on [contest_time:664651].↵
↵
You will have $5$ hours to solve $13$ problems, including **at least one** interactive problem.↵
↵
This is a team contest following ACM/ICPC rules, with teams of up to $3$ members. The penalty for an incorrect submission is $20$ minutes.↵
↵
The standings will be frozen for the last $60$ minutes of the contest. ↵
↵
Most problems are created and prepared by me, with help from [user:Bronya_H,2026-01-17], [user:zeemanz,2026-01-17], and [user:TRDOG,2026-01-17].↵
↵
We would like to thank:↵
↵
- [user:MikeMirzayanov,2026-01-17] for creating the fantastic CodeForces and Polygon platform.↵
↵
- [user:Sserxhs,2026-01-17], [user:SATSKY_2025target_LGM,2026-01-17], [user:-WIDA-,2026-01-17], [user:fatalerror,2026-01-17], and [user:itsiftikar02,2026-01-17] for testing the round and providing valuable feedback.↵
↵
- [user:-firefly-,2026-01-17] for generously letting me copy his [Soy Cup #2: Vivian](https://codeforces.me/blog/entry/143231) announcement.↵
↵
- [user:fatalerror,2026-01-17] for preparing the invitation letter.↵
↵
- [user:Tobo,2026-01-17] for being the biggest ^(*￣(oo)￣)^ in history.↵
↵
- You for participating in the round!↵
↵
### Registration↵
↵
If you are living in China or have a WeChat/QQ account, you may register by filling in [this form](https://docs.qq.com/form/page/DTUxyb0FQdUZTcHhE). Otherwise, you may register by filling in [this form](https://docs.google.com/forms/d/e/1FAIpQLSd4zln9ngLHzeIVHVUMQpejG-4s2Q00PeBX4y04O2cMHhRaew/viewform). Please **do not fill in both forms**.↵
↵
↵
#### Notes↵
↵
- You may attempt past contests at [contest:105692] and [contest:105883].↵
↵
- If you have any queries regarding the contest, please send a private message on either Codeforces or WeChat.↵
↵
Good luck and have fun!↵
↵
↵
↵
UPD 1: Everyone who has registered should have received an invitation link in their private messages. Please message me if you are not invited.↵
↵
↵
UPD2: Here is the contest link: [Baozii Cup 3](https://codeforces.me/contestInvitation/bcf12afc73176d8d31fc91235d6ef152c8656c58). If you didn’t register for the contest, you may also view the scoreboard via the link above.↵
↵
UPD3: Note that rules about third party code for Codeforces still apply in this contest. If you are found out using LLM-generated code, you will be sent to [user:cry,2026-01-25]'s basement. For any queries regarding problem statements, please ask in the clarifications section. ↵
↵
UPD4: The contest has ended. The problems have been uploaded to gym. Please leave any feedback in the comments section!↵
↵
↵
↵
↵
We are happy to invite you Baozii Cup 3, which will take place on [contest_time:664651].↵
↵
You will have $5$ hours to solve $13$ problems, including **at least one** interactive problem.↵
↵
This is a team contest following ACM/ICPC rules, with teams of up to $3$ members. The penalty for an incorrect submission is $20$ minutes.↵
↵
The standings will be frozen for the last $60$ minutes of the contest. ↵
↵
Most problems are created and prepared by me, with help from [user:Bronya_H,2026-01-17], [user:zeemanz,2026-01-17], and [user:TRDOG,2026-01-17].↵
↵
We would like to thank:↵
↵
- [user:MikeMirzayanov,2026-01-17] for creating the fantastic CodeForces and Polygon platform.↵
↵
- [user:Sserxhs,2026-01-17], [user:SATSKY_2025target_LGM,2026-01-17], [user:-WIDA-,2026-01-17], [user:fatalerror,2026-01-17], and [user:itsiftikar02,2026-01-17] for testing the round and providing valuable feedback.↵
↵
- [user:-firefly-,2026-01-17] for generously letting me copy his [Soy Cup #2: Vivian](https://codeforces.me/blog/entry/143231) announcement.↵
↵
- [user:fatalerror,2026-01-17] for preparing the invitation letter.↵
↵
- [user:Tobo,2026-01-17] for being the biggest ^(*￣(oo)￣)^ in history.↵
↵
- You for participating in the round!↵
↵
### Registration↵
↵
If you are living in China or have a WeChat/QQ account, you may register by filling in [this form](https://docs.qq.com/form/page/DTUxyb0FQdUZTcHhE). Otherwise, you may register by filling in [this form](https://docs.google.com/forms/d/e/1FAIpQLSd4zln9ngLHzeIVHVUMQpejG-4s2Q00PeBX4y04O2cMHhRaew/viewform). Please **do not fill in both forms**.↵
↵
↵
#### Notes↵
↵
- You may attempt past contests at [contest:105692] and [contest:105883].↵
↵
- If you have any queries regarding the contest, please send a private message on either Codeforces or WeChat.↵
↵
Good luck and have fun!↵
↵
↵
↵
UPD 1: Everyone who has registered should have received an invitation link in their private messages. Please message me if you are not invited.↵
↵
↵
UPD2: Here is the contest link: [Baozii Cup 3](https://codeforces.me/contestInvitation/bcf12afc73176d8d31fc91235d6ef152c8656c58). If you didn’t register for the contest, you may also view the scoreboard via the link above.↵
↵
UPD3: Note that rules about third party code for Codeforces still apply in this contest. If you are found out using LLM-generated code, you will be sent to [user:cry,2026-01-25]'s basement. For any queries regarding problem statements, please ask in the clarifications section. ↵
↵
UPD4: The contest has ended. The problems have been uploaded to gym. Please leave any feedback in the comments section!↵
↵
↵
↵
