Hello Codeforces Community! I'm [user:susenyang,2025-04-13], and I'm excited to share a contest with you!↵
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This contest is [contest:105838], an official contest hosted by my university. I believe it's a great contest, and I hope you'll enjoy it. You will have $5$ hours to solve $13$ problems.↵
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The round will be hosted by rules of ICPC and the penalty is 20 minutes per wrong submission.↵
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Author List: [user:susenyang,2025-04-13], [user:Linear_L,2025-04-13], [user:zycpdd,2025-04-13], [user:23337456,2025-04-13], [user:tryandtryagain,2025-04-13], [user:alicespring,2025-04-13]↵
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We would like to thank:↵
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- [user:fzx,2025-04-13] for the red testing.↵
- [user:thisislike_fan,2025-04-13], [user:gjyyyds,2025-04-13], [user:thisislike_fan,2025-04-13] for the orange testing.↵
- [user:7_divided_by_3,2025-04-13], [user:xiojoy,2025-04-13] for the purple testing.↵
- [user:cmy415,2025-04-13], [user:mojo__hugo,2025-04-13], [user:AEcreator,2025-04-13], [user:One_Wan,2025-04-13], [user:Silencer76,2025-04-13], [user:sakuya_maid_fans,2025-04-13], [user:KataGo,2025-04-13] for the blue testing.↵
- [user:VladmirZ,2025-04-13] for the cyan testing.↵
- [user:MikeMirzayanov,2025-04-13] for the **Codeforces** and **Polygon** platform!↵
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If you have any suggestions, please feel free to leave them in the comments. Your feedback will be invaluable to us!↵
↵
**We provide PDF Statements in both English and Chinese, as well as a Chinese version of the Solution. The English version of the Solution will be updated later.**↵
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Besides, we also have a **warm-up contest**. If you are interested in it, please click [this link](https://mirror.codeforces.com/contestInvitation/32227e8824c43acb0de8cd2ae69b68db3a05e81e).↵
↵

↵
This contest is [contest:105838], an official contest hosted by my university. I believe it's a great contest, and I hope you'll enjoy it. You will have $5$ hours to solve $13$ problems.↵
↵
The round will be hosted by rules of ICPC and the penalty is 20 minutes per wrong submission.↵
↵
Author List: [user:susenyang,2025-04-13], [user:Linear_L,2025-04-13], [user:zycpdd,2025-04-13], [user:23337456,2025-04-13], [user:tryandtryagain,2025-04-13], [user:alicespring,2025-04-13]↵
↵
We would like to thank:↵
↵
- [user:fzx,2025-04-13] for the red testing.↵
- [user:thisislike_fan,2025-04-13], [user:gjyyyds,2025-04-13], [user:thisislike_fan,2025-04-13] for the orange testing.↵
- [user:7_divided_by_3,2025-04-13], [user:xiojoy,2025-04-13] for the purple testing.↵
- [user:cmy415,2025-04-13], [user:mojo__hugo,2025-04-13], [user:AEcreator,2025-04-13], [user:One_Wan,2025-04-13], [user:Silencer76,2025-04-13], [user:sakuya_maid_fans,2025-04-13], [user:KataGo,2025-04-13] for the blue testing.↵
- [user:VladmirZ,2025-04-13] for the cyan testing.↵
- [user:MikeMirzayanov,2025-04-13] for the **Codeforces** and **Polygon** platform!↵
↵
If you have any suggestions, please feel free to leave them in the comments. Your feedback will be invaluable to us!↵
↵
**We provide PDF Statements in both English and Chinese, as well as a Chinese version of the Solution. The English version of the Solution will be updated later.**↵
↵
Besides, we also have a **warm-up contest**. If you are interested in it, please click [this link](https://mirror.codeforces.com/contestInvitation/32227e8824c43acb0de8cd2ae69b68db3a05e81e).↵
↵





