Hello, Codeforces!↵
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<img src="/predownloaded/2e/e2/2ee2f0f95f05aae6ca6f47812dae2dc2aabf277b.png" style="width:200px; float:right; margin: 0 1em 1em 1em"/>↵
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On [contest_time:1610] we will host [contest:1610].↵
↵
It is the fifth round of a 2021 series of [Codeforces Global Rounds](/blog/entry/65002). The rounds are open and rated for everybody.↵
↵
The prizes for this round:↵
<ul>↵
<li> 30 best participants get a t-shirt.↵
<li> 20 t-shirts are randomly distributed among those with ranks between 31 and 500, inclusive.↵
</ul>↵
↵
The prizes for the 6-round series in 2021:↵
<ul>↵
<li> In each round top-100 participants get points according to the [table](https://pastebin.com/QT5sXEaT).↵
<li> The final result for each participant is equal to the sum of points he gets in the four rounds he placed the highest.↵
<li> The best 20 participants over all series get sweatshirts and place certificates.↵
</ul>↵
↵
Thanks to XTX, which in 2021 supported the global rounds initiative!↵
↵
The problems were written and prepared by [user:AliShahali1382,2021-11-20](Ali Shahali), [user:AmShZ,2021-11-20](AmirMohammad ShahRezaei), [user:DeadlyCritic,2021-11-20](MohammadHossein Paydar), [user:Keshi,2021-11-20](Alireza Keshavarz), [user:alireza_kaviani,2021-11-20](Alireza Kaviani).↵
↵
We would like to thank these people:↵
<ul>↵
<li> [user:antontrygubO_o,2021-11-20], for coordinating and helping a lot to make this round happen.↵
<li> [user:Tet,2021-11-20](Soroush Sahraei) and [user:-zeus-,2021-11-20](Alireza Samimi) for giving ideas for some problems.↵
<li> our testers for testing and providing helpful feedbacks: [user:gamegame,2021-11-20], [user:Kalam,2021-11-20], [user:Amoo_Safar,2021-11-20], [user:prabowo,2021-11-20], [user:dorijanlendvaj,2021-11-20], [user:Parsa84, 2021-11-20][user:nor,2021-11-20], [user:ArshiaDadras,2021-11-21], [user:-zeus-,2021-11-20], [user:ijxjdjd,2021-11-20], [user:Sohsoh84,2021-11-20], [user:chctxdy68,2021-11-20], [user:m371,2021-11-20], [user:naman1601,2021-11-20], [user:mblazev,2021-11-20], [user:fatemetmhr,2021-11-20], [user:hiva_,2021-11-20], [user:manish.17,2021-11-20], [user:Saman.,2021-11-20], [user:Smahdi,2021-11-20], [user:Vjovein,2021-11-20].↵
<li> again [user:gamegame,2021-11-20] for being an orz tester and ACing all of our problems!↵
<li> [user:MikeMirzayanov,2021-11-20] for codeforces and polygon platform!↵
</ul>↵
↵
You will have **3 hours** to solve **9 problems**. As usual, it is highly recommended to read all problems!↵
↵
The rating distribution will be announced at least 5 minutes before the round starts! :)↵
↵
↵
<img src="/predownloaded/2e/e2/2ee2f0f95f05aae6ca6f47812dae2dc2aabf277b.png" style="width:200px; float:right; margin: 0 1em 1em 1em"/>↵
↵
On [contest_time:1610] we will host [contest:1610].↵
↵
It is the fifth round of a 2021 series of [Codeforces Global Rounds](/blog/entry/65002). The rounds are open and rated for everybody.↵
↵
The prizes for this round:↵
<ul>↵
<li> 30 best participants get a t-shirt.↵
<li> 20 t-shirts are randomly distributed among those with ranks between 31 and 500, inclusive.↵
</ul>↵
↵
The prizes for the 6-round series in 2021:↵
<ul>↵
<li> In each round top-100 participants get points according to the [table](https://pastebin.com/QT5sXEaT).↵
<li> The final result for each participant is equal to the sum of points he gets in the four rounds he placed the highest.↵
<li> The best 20 participants over all series get sweatshirts and place certificates.↵
</ul>↵
↵
Thanks to XTX, which in 2021 supported the global rounds initiative!↵
↵
The problems were written and prepared by [user:AliShahali1382,2021-11-20](Ali Shahali), [user:AmShZ,2021-11-20](AmirMohammad ShahRezaei), [user:DeadlyCritic,2021-11-20](MohammadHossein Paydar), [user:Keshi,2021-11-20](Alireza Keshavarz), [user:alireza_kaviani,2021-11-20](Alireza Kaviani).↵
↵
We would like to thank these people:↵
<ul>↵
<li> [user:antontrygubO_o,2021-11-20], for coordinating and helping a lot to make this round happen.↵
<li> [user:Tet,2021-11-20](Soroush Sahraei) and [user:-zeus-,2021-11-20](Alireza Samimi) for giving ideas for some problems.↵
<li> our testers for testing and providing helpful feedbacks: [user:gamegame,2021-11-20], [user:Kalam,2021-11-20], [user:Amoo_Safar,2021-11-20], [user:prabowo,2021-11-20], [user:dorijanlendvaj,2021-11-20], [user:Parsa84, 2021-11-20][user:nor,2021-11-20], [user:ArshiaDadras,2021-11-21], [user:-zeus-,2021-11-20], [user:ijxjdjd,2021-11-20], [user:Sohsoh84,2021-11-20], [user:chctxdy68,2021-11-20], [user:m371,2021-11-20], [user:naman1601,2021-11-20], [user:mblazev,2021-11-20], [user:fatemetmhr,2021-11-20], [user:hiva_,2021-11-20], [user:manish.17,2021-11-20], [user:Saman.,2021-11-20], [user:Smahdi,2021-11-20], [user:Vjovein,2021-11-20].↵
<li> again [user:gamegame,2021-11-20] for being an orz tester and ACing all of our problems!↵
<li> [user:MikeMirzayanov,2021-11-20] for codeforces and polygon platform!↵
</ul>↵
↵
You will have **3 hours** to solve **9 problems**. As usual, it is highly recommended to read all problems!↵
↵
The rating distribution will be announced at least 5 minutes before the round starts! :)↵
↵
