Eolymp Weekend Practice #6 and Palestinian TST IOI 2025

Revision en10, by MathModel, 2025-05-07 19:01:57

Hello Codeforces!


I'm vert super duper ultra excite to invite you to the first round I have written on my own, Weekend Practice round #6 on May 11, at 16 UTC. This is a rated contest at Eolymp.

In The same time , The Team Selection Test of Palestinian Team For IOI 2025 , Will happen in a private Mirror which will be only open for Potential Participants.

Format and Difficulty

Same as in previous rounds, the competition is primarily aimed at improving practical skills. There will be 2 hours for 5 tasks of varying difficulty, the easiest of which can even be solved by beginners.

The scoring for each task being block-based (meaning points are awarded for each block of tests separately, and only if the solution passes all tests in the block). If there is a tie between two participants, the one whose last productive submission (i.e., a submission that added at least one point) was made earlier will be ranked higher in the leaderboard.

The statements will be available in the following languages: English, Ukrainian, French, Spanish, Azerbaijani, Russian.

Registration

You can join the competition on the competition page.

Prizes

The top-10 participants of the competition, as well as 10 random participants from those who rank from 11th to 100th place, will receive prizes in the form of t-shirts. Please, note, that we have changed how prizes are awarded,

Visit Frequently Asked Questions section to learn more.

Thanks a lot to:

Score Distribution:

$$$\large \displaystyle 50-100-200-300-500$$$

Sponsors

This round is sponsored by Acai Travel

Acai Travel

Acai Travel is a seed-stage startup using AI to transform customer support in the travel industry. With $4M in funding and partnerships with leading global brands, our AI assistant integrates with travel and airline systems to deliver real-time information, automate ticket routing, analyze sentiment, and generate smart auto-replies—boosting efficiency and enhancing customer experiences.

We work with cutting-edge AI to solve real problems, not to chase trends. Our team, based in New York, Barcelona, and Pune, builds practical solutions rooted in strong values, curiosity, and a culture that fosters innovation and positive change.

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en37 English MathModel 2025-05-12 13:54:54 210
en36 English MathModel 2025-05-12 13:53:26 945 Tiny change: 'ints ; $50%$)\n\n7. ' -> 'ints ; $50 \%$)\n\n7. '
en35 English MathModel 2025-05-11 19:10:10 22
en34 English MathModel 2025-05-11 19:01:30 342 Tiny change: '** .\n\n#### **UPD4 ' -> '** .\n\n## **UPD4 '
en33 English MathModel 2025-05-11 18:13:57 1 Tiny change: 'n#### **UP2 : Editor' -> 'n#### **UPD2 : Editor'
en32 English MathModel 2025-05-11 18:06:31 41
en31 English MathModel 2025-05-11 18:04:54 354
en30 English MathModel 2025-05-10 11:40:19 49
en29 English MathModel 2025-05-10 10:34:30 25 Tiny change: ' , [user:Tim' -> ' , [user:tfgs] , [user:Tim'
en28 English MathModel 2025-05-09 18:30:28 26 Tiny change: '] , [user:' -> '] , [user:5_11N] , [user:'
en27 English MathModel 2025-05-09 17:32:59 29 Tiny change: '] , [user:' -> '] , [user:hackstar] , [user:'
en26 English MathModel 2025-05-09 17:26:04 28 Tiny change: '25-05-09] for test' -> '25-05-09] , [user:aritro_] for test'
en25 English MathModel 2025-05-09 14:34:06 26 Tiny change: '25-05-07] for test' -> '25-05-07] , [user:Abito] for test'
en24 English MathModel 2025-05-09 13:41:21 282 Tiny change: '### **UPD1: To Avoid' -> '### **UPD1** : To Avoid'
en23 English MathModel 2025-05-09 11:51:11 34 Tiny change: '] , [user:Tim' -> '] , [user:Proof_By_QED] , [user:Tim'
en22 English MathModel 2025-05-08 20:39:58 2 Tiny change: '025&hour=19&min=00&se' -> '025&hour=18&min=00&se'
en21 English MathModel 2025-05-08 20:07:56 52 Tiny change: '] , [user:Vla' -> '] , [user:Ignut] , [user:Barbie] [user:Vla'
en20 English MathModel 2025-05-08 14:29:03 33 Tiny change: ' Polishing.\n- [use' -> ' Polishing ❤️.\n- [use'
en19 English MathModel 2025-05-08 14:27:06 78
en18 English MathModel 2025-05-08 10:57:06 27 Tiny change: ' [user:Tim' -> ' [user:TimDee] , [user:Tim'
en17 English MathModel 2025-05-07 19:14:27 2 Tiny change: 'p4n5cti8) taking pl' -> 'p4n5cti8) , taking pl'
en16 English MathModel 2025-05-07 19:13:52 13 Tiny change: 'p4n5cti8) on [May 1' -> 'p4n5cti8) taking place on [May 1'
en15 English MathModel 2025-05-07 19:11:07 1 Tiny change: 'tra excite to invite' -> 'tra excited to invite'
en14 English MathModel 2025-05-07 19:10:54 2 Tiny change: 'n\nI'm vert super dup' -> 'n\nI'm very super dup'
en13 English MathModel 2025-05-07 19:10:16 0 (published)
en12 English MathModel 2025-05-07 19:10:10 169 (saved to drafts)
en11 English MathModel 2025-05-07 19:05:29 172
en10 English MathModel 2025-05-07 19:01:57 41
en9 English MathModel 2025-05-07 18:59:17 84 (published)
en8 English MathModel 2025-05-07 18:58:47 0 (saved to drafts)
en7 English MathModel 2025-05-07 18:55:47 1027 Tiny change: 'n- [user:Tim' -> 'n- [user:waipoli] [user:Tim' (published)
en6 English MathModel 2025-05-07 16:47:39 28 Tiny change: '] , [user:ALnQ' -> '] , [user:Haidora][user:ALnQ'
en5 English MathModel 2025-05-07 16:46:49 245 Tiny change: ' , [user:Alnaq417] , [us' -> ' , [user:ALnQ417] , [us'
en4 English MathModel 2025-05-06 20:57:35 79 Tiny change: 'n:**\n$$\Large \displays' -> 'n:**\n$$\LARGE \displays'
en3 English MathModel 2025-05-06 20:53:52 604
en2 English MathModel 2025-05-06 20:51:45 1032 Tiny change: 'i, Russian , Arabic , Turkish and Uzbek**.\n\n###' -> 'i, Russian**.\n\n###'
en1 English MathModel 2025-05-06 20:36:15 3761 Initial revision (saved to drafts)