Codeforces Round #866 (Div.1, Div.2, based on Lipetsk Team Olympiad)
Difference between en11 and en12, changed 86 character(s)
Hello, Codeforces!↵
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This Saturday VIII Lipetsk Team Olympiad, a competition for high school students from all over the country, will be held in Lipetsk. Maybe you participated in previous Codeforces rounds based on our problems (rounds [643](https://codeforces.net/contest/1355) and [791](https://codeforces.net/contest/1679)).↵
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The round will start at [contest_time:1819] and will last for 2 hours. **Please notice the unusual time.** Each division will have 6 problems. The round will be held according to the Codeforces rules and will be rated for both divisions.↵
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Problems were proposed and prepared by [user:Um_nik,2023-04-12], [user:DishonoredRighteous,2023-04-12], [user:FairyWinx,2023-04-12], [user:golikovnik,2023-04-12], [user:teraqqq,2023-04-12], [user:grphil,2023-04-12], [user:Kon567889,2023-04-12], [user:TeaTime,2023-04-14], [user:Tikhon228,2023-04-12] and [user:dshindov,2023-04-12].↵
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I would like to thank [user:Artyom123,2023-04-12] for great round coordination and our testers: [user:Ormlis,2023-04-14], [user:bashkort,2023-04-14], [user:Yuu,2023-04-15], [user:I_LOVE_DASHA_KARPENKO,2023-04-15], [user:Egor.Lifar,2023-04-14], [user:iakovlev.zakhar,2023-04-14], [user:Mangooste,2023-04-14], [user:Siberian,2023-04-14], [user:SomethingNew,2023-04-14], [user:stepanov.aa,2023-04-14], [user:talant,2023-04-14], [user:rt3,2023-04-15], [user:towrist,2023-04-15], [user:Aaeria,2023-04-14], [user:Alexdat2000,2023-04-14], [user:qxforever,2023-04-14], [user:Renatyss,2023-04-14], [user:Renedyn,2023-04-14], [user:sevlll777,2023-04-14], [user:towrist,2023-04-14], [user:valerikk,2023-04-14], [user:Tiagodfs,2023-04-14], [user:wiz_cs,2023-04-15], [user:Setsuna,2023-04-15], [user:ezraft,2023-04-14], [user:Gornak40,2023-04-14], [user:HunterXD,2023-04-15], [user:kbats183,2023-04-14], [user:Nathan_McKane,2023-04-14], [user:nik_sn,2023-04-14], [user:Nitelike,2023-04-14], [user:Tilt,2023-04-14], [user:ak2006,2023-04-14], [user:KiruxaLight,2023-04-14], [user:9kin,2023-04-14].↵
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Of course, I would like to thank all Codeforces team for this beautiful platform!↵
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Scoring distribution will be announced later.↵
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I hope you will enjoy our problems. Wish you good luck and high rating!↵
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**UPD.**: Scoring distribution:↵
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**Div.1:** 750 – 1250 – 1500 – 2000 – 2750 – 3000↵
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**Div.2:** 500 – 1000 – 1750 – 2000 – 2500 – 3500↵
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**UPD**: **Winners**!↵
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**Div 2:**↵
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- [user:yy_chen,2023-04-15]↵
- [user:dengtingyu12138,2023-04-15]↵
- [user:keyurchd_11,2023-04-15]↵
- [user:Lyamzin_alexandr,2023-04-15]↵
- [user:39_w_M9,2023-04-15]↵
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**Div 1:**↵
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- [user:BurnedChicken,2023-04-15]↵
- [user:Radewoosh,2023-04-15]↵
- [user:turmax,2023-04-15]↵
- [user:yzc2005,2023-04-15]↵
- [user:tourist,2023-04-15]↵
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**UPD**: Editorial is available [here](https://codeforces.net/blog/entry/115133)

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en12 English DishonoredRighteous 2023-04-16 15:48:58 86
en11 English Artyom123 2023-04-15 19:14:16 377
en10 English DishonoredRighteous 2023-04-15 19:08:24 0 (published)
en9 English Artyom123 2023-04-15 19:03:47 195 Tiny change: '4], [user:e' -> '4], [user: Setsuna], [user:e' (saved to drafts)
en8 English Kon567889 2023-04-15 17:43:29 57
en7 English DishonoredRighteous 2023-04-15 11:58:38 140 Tiny change: '0 – 3000\nDiv.2 50' -> '0 – 3000\n\nDiv.2 50'
en6 English DishonoredRighteous 2023-04-14 14:12:08 1 Tiny change: 'petsk. May be you par' -> 'petsk. Maybe you par'
en5 English DishonoredRighteous 2023-04-14 14:04:59 0 (published)
en4 English DishonoredRighteous 2023-04-14 14:03:09 586
en3 English DishonoredRighteous 2023-04-12 22:16:11 5 Tiny change: '23-04-12]. I would li' -> '23-04-12].\n\nI would li'
en2 English DishonoredRighteous 2023-04-12 22:15:10 64
en1 English DishonoredRighteous 2023-04-12 22:14:04 1402 Initial revision (saved to drafts)