Refact.ai Match 1 (Codeforces Round 985, Div. 1 + Div. 2)

Revision en31, by Error_Yuan, 2024-11-09 20:48:24

Hello, Codeforces!

We (KDOI Team) are glad to invite you to take part in Refact.ai Match 1 (Codeforces Round 985), which is the 8th CP contest held by us! You can view the previous rounds by us here.

  • Number of problems: $$$9$$$ ($$$0$$$ interactive);
  • Start time: Nov/09/2024 17:35 (Moscow time);
  • Contest duration: $$$180$$$ minutes;
  • Score distribution: $$$750-1250-1750-2250-2500-3000-3500-5000-5500$$$.

The problems were authored and prepared by Error_Yuan, wyrqwq, Otomachi_Una and me sszcdjr.


A few words from our sponsor:

We’re Refact.ai, an open-source AI Coding Assistant, and on November 9th, we’ll be hosting our first round on Codeforces! Winners will receive valuable prizes, and all participants will have a chance to get some exclusive merch from us.

Refact.ai is pushing AI beyond simple code completion. Soon, we’ll launch the Autonomous AI Agent—a developer’s buddy that handles real engineering tasks end-to-end, from planning and coding to testing and deployment. You can read more about us in this announcement.

If you're excited about AI in software development and want to build the future instead of focusing on the trivial, join Refact.ai, founded by a former OpenAI researcher. We’re looking for talented Researchers and Backend developers to join our team.

Apply

Prizes:

  • 1st place: 500 USDT
  • 2nd place: 300 USDT
  • 3rd place: 200 USDT
  • 4-5th place: 100 USDT
  • Top 50 participants will get T-Shirts
  • Additionally, 50 random participants from the top 51-500 will receive a T-shirt

Good luck in the contest!


On the right, badges of the authors. From top to bottom, left to right are Error_Yuan, Otomachi_Una, sszcdjr and wyrqwq respectively.

We would like to thank:

Good Luck & Have Fun!

UPD1. The Editorial was published.

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en33 English Error_Yuan 2024-11-09 21:32:24 362
en32 English Error_Yuan 2024-11-09 20:48:31 0 (published)
en31 English Error_Yuan 2024-11-09 20:48:24 62 (saved to drafts)
en30 English Error_Yuan 2024-11-09 08:31:38 67
en29 English MikeMirzayanov 2024-11-06 19:34:04 97
en28 English MikeMirzayanov 2024-11-06 18:16:49 8 Tiny change: 'efact.ai](refact.ai)' -> 'efact.ai](https://refact.ai)'
en27 English Error_Yuan 2024-11-06 16:14:55 0 (published)
en26 English KAN 2024-11-06 16:11:52 225 Tiny change: 'olor: rgb(90, 8, 5);color: w' -> 'olor: rgb(231, 21, 13);color: w'
en25 English KAN 2024-11-06 15:38:31 4555 Tiny change: 'Refact.ai], an open-' -> 'Refact.ai](refact.ai), an open-'
en24 English Error_Yuan 2024-11-05 18:40:18 157
en23 English sszcdjr 2024-11-05 15:36:42 216
en22 English sszcdjr 2024-11-05 15:30:30 182
en21 English sszcdjr 2024-11-05 14:43:35 549
en20 English sszcdjr 2024-11-05 14:30:36 26
en19 English sszcdjr 2024-11-05 14:30:00 59
en18 English sszcdjr 2024-11-05 14:29:05 270
en17 English Error_Yuan 2024-11-05 11:27:05 18 Tiny change: 'us [here]().\n\n- Nu' -> 'us [here](/blog/entry/135847).\n\n- Nu'
en16 English Error_Yuan 2024-11-05 06:14:39 143
en15 English Error_Yuan 2024-11-01 07:45:11 34 Tiny change: 'Hello Codeforce' -> 'Hello, Codeforce'
en14 English Error_Yuan 2024-10-20 14:30:25 18 Tiny change: '0" title="tourist You">You</a>,' -> '0" title="Tourist You" href="/profile">You</a>,'
en13 English Error_Yuan 2024-10-17 11:49:32 20 Tiny change: 'user-4000">You</a>,' -> 'user-4000" title="tourist You">You</a>,'
en12 English Error_Yuan 2024-10-14 16:01:32 9
en11 English sszcdjr 2024-10-10 17:39:54 32 Tiny change: '0], [user:Otomachi_Una,2024-10-10], [user:' -> '0], [user:'
en10 English sszcdjr 2024-10-10 17:13:15 841
en9 English Error_Yuan 2024-10-09 18:18:22 81
en8 English Error_Yuan 2024-10-09 18:16:42 1 Tiny change: '[contest:] which is ' -> '[contest:], which is '
en7 English Error_Yuan 2024-10-09 18:16:14 92
en6 English Error_Yuan 2024-10-09 18:02:08 164
en5 English Error_Yuan 2024-10-09 17:20:01 26 Tiny change: '09] and me. \n\nWe w' -> '09] and me [user:sszcdjr]. \n\nWe w'
en4 English Error_Yuan 2024-10-09 17:14:00 11 Tiny change: 'user user-tourist">You</a>,' -> 'user user-4000">You</a>,'
en3 English Error_Yuan 2024-10-09 17:08:21 14 Tiny change: 'user user-legendary">You</a>,' -> 'user user-tourist">You</a>,'
en2 English sszcdjr 2024-10-09 17:03:10 3 Tiny change: ' be given 10 problems ' -> ' be given 9 problems '
en1 English sszcdjr 2024-10-09 17:00:45 795 Initial revision (saved to drafts)