Hello Codeforces,↵
↵
We are very glad to invite you to participate in [contest:2153], which will start on [contest_time:2153]. You will be given **6 problems** and **2 hours** to solve them.↵
↵
All the problems are written and prepared by me and [user:maomao90, 2025-10-09].↵
↵
We would like to give our sincere thanks to:↵
↵
- [user:maomao90,2025-10-09] for his wonderful coordination and careful adjustments to some problems!↵
- [user:Alexdat2000,2025-10-09] for translating problem statements.↵
- [user:__baozii__,2025-10-09], [user:_istil,2025-10-09], [user:rui_er,2025-10-09], [user:AC-Automation,2025-10-09], [user:exgcd,2025-10-09], [user:A_G,2025-10-09], [user:Andreasyan,2025-10-09] for red testing.↵
- [user:-firefly-,2025-10-09], [user:K-423,2025-10-09], [user:frey4,2025-10-09], [user:LMeyling,2025-10-09], [user:Proof_by_QED,2025-10-09] for orange testing.↵
- [user:xudian,2025-10-09], [user:Sofija06,2025-10-09], [user:qsmcgogo,2025-10-09] for purple testing.↵
- [user:wink,2025-10-09] for blue testing.↵
- [user:absi2011,2025-10-09] for green testing.↵
- [user:chou_maple,2025-10-09] for grey testing.↵
- [user:MikeMirzayanov,2025-10-09] for the great codeforces and polygon platform.↵
- <a class="rated-user user-legendary" href="https://mirror.codeforces.com/profile/">You</a> for participating in the round.↵
↵
The score distribution is $500 - 750 - 1250 - 1750 - 2250 - 3250$.↵
↵
Hope everyone will enjoy the round!↵
↵
[Editorial](https://mirror.codeforces.com/blog/entry/147264) is out now!
↵
We are very glad to invite you to participate in [contest:2153], which will start on [contest_time:2153]. You will be given **6 problems** and **2 hours** to solve them.↵
↵
All the problems are written and prepared by me and [user:maomao90, 2025-10-09].↵
↵
We would like to give our sincere thanks to:↵
↵
- [user:maomao90,2025-10-09] for his wonderful coordination and careful adjustments to some problems!↵
- [user:Alexdat2000,2025-10-09] for translating problem statements.↵
- [user:__baozii__,2025-10-09], [user:_istil,2025-10-09], [user:rui_er,2025-10-09], [user:AC-Automation,2025-10-09], [user:exgcd,2025-10-09], [user:A_G,2025-10-09], [user:Andreasyan,2025-10-09] for red testing.↵
- [user:-firefly-,2025-10-09], [user:K-423,2025-10-09], [user:frey4,2025-10-09], [user:LMeyling,2025-10-09], [user:Proof_by_QED,2025-10-09] for orange testing.↵
- [user:xudian,2025-10-09], [user:Sofija06,2025-10-09], [user:qsmcgogo,2025-10-09] for purple testing.↵
- [user:wink,2025-10-09] for blue testing.↵
- [user:absi2011,2025-10-09] for green testing.↵
- [user:chou_maple,2025-10-09] for grey testing.↵
- [user:MikeMirzayanov,2025-10-09] for the great codeforces and polygon platform.↵
- <a class="rated-user user-legendary" href="https://mirror.codeforces.com/profile/">You</a> for participating in the round.↵
↵
The score distribution is $500 - 750 - 1250 - 1750 - 2250 - 3250$.↵
↵
Hope everyone will enjoy the round!↵
↵
[Editorial](https://mirror.codeforces.com/blog/entry/147264) is out now!




