Hello Codeforces!

On Nov/26/2022 17:05 (Moscow time) we will host Codeforces Global Round 24. Note the unusual time of the round.

It is the sixth round of a 2022 series of Codeforces Global Rounds. 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.
• 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 Cocoly1990, waaitg and Imakf.

We would also like to thank:

• errorgorn for 🥵 and 🥶 coordination.
• KAN for translating the problems. 🥳🥳🥳
• Wolam for proposing rejected problems. 😭😭😭
• Our testers for testing and providing invaluable feedbacks: Rebelz, Sugar_fan, ShmilyTY, dXqwq, Aestas16, SSerxhs, Qiulyqwq, Leasier, Yakumo_Ran, Nanako, Celtic, JohnVictor, installb, mafailure, CuiZhenhang, lunchbox, _rey, Wolam, mejiamejia, TomiokapEace, QAQ_QWQ, mkisic, Mahfel, luanmenglei, ak2006 and NishikigiChisato. 😋😋😋
• MikeMirzayanov for amazing platform Codeforces and Polygon. 🥰🥰🥰

Round Information:

• Duration: 2 hours and 30 minutes
• Number of problems: 8 problems, one split into 3 subtasks 🤯
• Score distribution: to be announced
• There is an interactive problem, so please see the guide of interactive problems if you are not familiar with it.

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