Codeforces Global Round 24
Difference between en6 and en7, changed 67 character(s)
Hello Codeforces!<img src="/predownloaded/2e/e2/2ee2f0f95f05aae6ca6f47812dae2dc2aabf277b.png" style="width: 200.0px;float: right;margin: 0 1.0em 1.0em 1.0em;max-width: 100.0%;max-height: 100.0%;">↵

On [contest_time:1764] we will host [contest:1764]. **Note the unusual time of the round.** ↵

It is the sixth round of a 2022 series of [Codeforces Global Rounds](https://codeforces.me/blog/entry/65002). The rounds are open and rated for everybody.↵

The prizes for this round:↵

- 30 best participants get a t-shirt.↵
- 20 t-shirts are randomly distributed among those with ranks between 31 and 500, inclusive.↵

The prizes for the 6-round series in 2022:↵

- In each round top-100 participants get points according to the [table](https://pastebin.com/QT5sXEaT).↵
- The final result for each participant is equal to the sum of points he gets in the four rounds he placed the highest.↵
- The best 20 participants over all series get sweatshirts and place certificates.↵

Thanks to XTX, which in 2022 supported the global rounds initiative!↵

The problems were written and prepared by [user:Cocoly1990,2022-11-25], [user:waaitg,2022-11-25] and [user:Imakf,2022-11-25]. &#128064;&#128064;&#128064;↵

We would also like to thank:↵

- [user:errorgorn,2022-11-25] for &#129397; and &#129398; coordination.↵
- [user:KAN,2022-11-25] for translating the problems. &#129395;&#129395;&#129395;↵
- [user:Wolam,2022-11-25] for proposing <s>rejected</s> problems. &#128557;&#128557;&#128557;↵
- Our testers for testing and providing invaluable feedbacks: [user:Rebelz,2022-11-25], [user:Heltion,2022-11-25], [user:ShmilyTY,2022-11-25], [user:dXqwq,2022-11-25], [user:Aestas16,2022-11-25], [user:SSerxhs,2022-11-25], [user:Qiuly.qwq,2022-11-25], [user:Leasier,2022-11-25], [user:Yakumo_Ran,2022-11-25], [user:Nanako,2022-11-25], [user:Celtic,2022-11-25], [user:JohnVictor,2022-11-25], [user:installb,2022-11-25], [user:mafailure,2022-11-25], [user:CuiZhenhang,2022-11-25], [user:lunchbox,2022-11-25], [user:pedroslrey,2022-11-25], [user:Wolam,2022-11-25], [user:LLL_2820,2022-11-25], [user:mejiamejia,2022-11-25], [user:TomiokapEace,2022-11-25], [user:QAQ_QWQ,2022-11-25], [user:mkisic,2022-11-25], [user:Mahfel,2022-11-25], [user:luanmenglei,2022-11-25], [user:ak2006,2022-11-25] and [user:veco,2022-11-25]. &#128523;&#128523;&#128523;↵
- [user:MikeMirzayanov,2022-11-25] for amazing platform Codeforces and Polygon. &#129392;&#129392;&#129392;↵

Round Information:↵

- Duration: 2 hours and 30 minutes &#128293;&#128293;&#128293;↵
- Number of problems: 8 problems, one split into 3 subtasks &#129327;&#129327;&#129327;↵
- Score distribution: $500$ &mdash; $1000$ &mdash; $1500$ &mdash; $1750$ &mdash; $2250$ &mdash; $2250$ &mdash; $(2000+500+500)$ &mdash; $3500$ &#129316;&#129316;&#129316;↵
- There is an interactive problem, so please see the [guide of interactive problems](https://codeforces.me/blog/entry/45307) if you are not familiar with it. &#129325;&#129325;&#129325;↵

As always, hope you all gain non-negative ratings $\Delta$ in this round! &#127870;&#127870;&#127870;


**UPD1**: [Editorial](https://codeforces.me/blog/entry/109468)

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en7 English Imakf 2022-11-26 19:46:04 67
en6 English Imakf 2022-11-25 10:49:59 28 Tiny change: '5], [user:m' -> '5], [user:LLL_2820], [user:m'
en5 English Imakf 2022-11-25 08:19:26 0 (published)
en4 English Imakf 2022-11-25 07:58:49 155 Tiny change: '- $2250$ -($2000+500' -> '- $2250$ - ($2000+500'
en3 English Imakf 2022-11-25 07:53:08 130
en2 English Imakf 2022-11-25 07:42:55 480 Tiny change: ' problems.\n- Our te' -> ' problems. &#128557;&#128557;&#128557;\n- Our te'
en1 English Imakf 2022-11-25 07:19:06 2477 Initial revision (saved to drafts)