Henlo Codeforces! ^_^↵
↵
I invite you to participate in [Codeforces Round #663 (Div.2)](https://codeforces.net/contests/1391) taking place on [contest_time:1391]. The round is rated for users rated less than 2100, while other users can participate non-competitively. ↵
↵
The round features five problems, and you have 2 hours to solve them. There may, or may not, be an interactive problem; regardless, you should [know](https://codeforces.net/blog/entry/45307) how to deal with them. ↵
↵
I would, now, like to thank–↵
↵
- [user:antontrygubO_o,2020-07-31] for coordination <s>and manipulation</s>.↵
- [user:AwakeAnay,2020-07-31], [user:AsleepAdhyyan,2020-07-31], and [user:RestingRajarshi,2020-07-31] for always listening to my problem ideas. ↵
- [user:BRCode,2020-08-03] for making [3b1b-style](https://www.youtube.com/watch?v=LYrtRnz35sU) video editorials of the problems!↵
- [user:Aggu_01000101,2020-08-07], [user:Devil,2020-07-31], [user:Dragnoid99,2020-07-31], [user:NOOBxCODER,2020-07-31], [user:NooB_MB,2020-07-31], [user:Osama_Alkhodairy,2020-07-31], [user:Prabowo,2020-07-31], [user:Taran_1407,2020-07-31], [user:Tarrus,2020-07-31], [user:Tathagat_shah,2020-07-31], [user:TheOneYouWant,2020-07-31], [user:Utkarsh.25dec,2020-07-31], [user:Vivek1998299,2020-07-31], [user:_Aaryan_,2020-07-31], [user:aryanc403,2020-07-31], [user:dorijanlendvaj,2020-07-31], [user:growup974,2020-07-31], [user:hugopm,2020-07-31], [user:knightron00,2020-07-31], [user:kshitij_sodani,2020-07-31], [user:ltc.groverkss,2020-07-31], [user:nishkarsh,2020-07-31], [user:rohamizadidoost,2020-07-31], [user:shash42,2020-07-31], [user:socho,2020-08-03], [user:talibmohd,2020-07-31], and [user:thenymphsofdelphi,2020-07-31] for testing! ↵
- [user: MikeMirzayanov,2020-07-31] for Codeforces and Polygon platforms– Polygon is truly remarkable!↵
↵
Please do not mind the long list of testers (I had to write code to tag everyone here) since the problem set changed _significantly_ after the first round of testing. ↵
↵
<s>We will announce the scoring distribution shortly.</s> The scoring distribution is **500–750–1250–2000–2750**.↵
↵
Good luck, and stay safe! ↵
↵
**UPD**: [Editorial](https://codeforces.net/blog/entry/81265)↵
↵
Here are video editorials by [user:BRCode,2020-08-09]:↵
↵
- [Problem A and B](https://www.youtube.com/watch?v=KJVigs8w-gg)↵
- [Problem C](https://www.youtube.com/watch?v=vWHUmtiPRQw)↵
- [Problem D](https://www.youtube.com/watch?v=kspzot42-uI)↵
- [Problem E](https://www.youtube.com/watch?v=y62jjZev3pY)↵
↵
↵
↵
I invite you to participate in [Codeforces Round #663 (Div.2)](https://codeforces.net/contests/1391) taking place on [contest_time:1391]. The round is rated for users rated less than 2100, while other users can participate non-competitively. ↵
↵
The round features five problems, and you have 2 hours to solve them. There may, or may not, be an interactive problem; regardless, you should [know](https://codeforces.net/blog/entry/45307) how to deal with them. ↵
↵
I would, now, like to thank–↵
↵
- [user:antontrygubO_o,2020-07-31] for coordination <s>and manipulation</s>.↵
- [user:AwakeAnay,2020-07-31], [user:AsleepAdhyyan,2020-07-31], and [user:RestingRajarshi,2020-07-31] for always listening to my problem ideas. ↵
- [user:BRCode,2020-08-03] for making [3b1b-style](https://www.youtube.com/watch?v=LYrtRnz35sU) video editorials of the problems!↵
- [user:Aggu_01000101,2020-08-07], [user:Devil,2020-07-31], [user:Dragnoid99,2020-07-31], [user:NOOBxCODER,2020-07-31], [user:NooB_MB,2020-07-31], [user:Osama_Alkhodairy,2020-07-31], [user:Prabowo,2020-07-31], [user:Taran_1407,2020-07-31], [user:Tarrus,2020-07-31], [user:Tathagat_shah,2020-07-31], [user:TheOneYouWant,2020-07-31], [user:Utkarsh.25dec,2020-07-31], [user:Vivek1998299,2020-07-31], [user:_Aaryan_,2020-07-31], [user:aryanc403,2020-07-31], [user:dorijanlendvaj,2020-07-31], [user:growup974,2020-07-31], [user:hugopm,2020-07-31], [user:knightron00,2020-07-31], [user:kshitij_sodani,2020-07-31], [user:ltc.groverkss,2020-07-31], [user:nishkarsh,2020-07-31], [user:rohamizadidoost,2020-07-31], [user:shash42,2020-07-31], [user:socho,2020-08-03], [user:talibmohd,2020-07-31], and [user:thenymphsofdelphi,2020-07-31] for testing! ↵
- [user: MikeMirzayanov,2020-07-31] for Codeforces and Polygon platforms– Polygon is truly remarkable!↵
↵
Please do not mind the long list of testers (I had to write code to tag everyone here) since the problem set changed _significantly_ after the first round of testing. ↵
↵
<s>We will announce the scoring distribution shortly.</s> The scoring distribution is **500–750–1250–2000–2750**.↵
↵
Good luck, and stay safe! ↵
↵
**UPD**: [Editorial](https://codeforces.net/blog/entry/81265)↵
↵
Here are video editorials by [user:BRCode,2020-08-09]:↵
↵
- [Problem A and B](https://www.youtube.com/watch?v=KJVigs8w-gg)↵
- [Problem C](https://www.youtube.com/watch?v=vWHUmtiPRQw)↵
- [Problem D](https://www.youtube.com/watch?v=kspzot42-uI)↵
- [Problem E](https://www.youtube.com/watch?v=y62jjZev3pY)↵
↵
↵
