 ↵
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Hello, Codeforces community!↵
↵
I'm glad to invite you to Codeforces Round #691 (Div. 1) and Codeforces Round #691 (Div. 2), which will be held on [contest_time:1459]. **The round will be rated for both divisions.**↵
↵
The problems were taken (mostly) from the ByteDance — Moscow Workshops Online Contest, which is happening at the same time. They were prepared by me, [user:AndreySergunin,2020-12-17], and [user:amethyst0,2020-12-17]. We are very thankful to the testers: [user:low_,2020-12-18], [user:__rkm__,2020-12-18], [user:ecnerwala,2020-12-18], [user:Tima,2020-12-18], [user:IITianUG,2020-12-18], [user:thenymphsofdelphi,2020-12-18], [user:mohammedehab2002,2020-12-18], [user:namanbansal013,2020-12-19], [user:Redux,2020-12-19] for their time and great feedback. Also big thanks to Bytedance instructors [user:chenjb,2020-12-18] and [user:MiFaFaOvO,2020-12-18] for testing and reviewing the Bytedance online contest.↵
↵
ByteDance is a global technology company operating a range of platforms that allow people across languages, cultures and geographies to create, discover and connect. **ByteDance** has partnered with **Moscow Workshops** and **Codeforces** to organize a top tier and exclusive training camp for the International Collegiate Programming Contest. The upcoming Programming Camp will be held in Beijing from February 20th to 26th, 2021.↵
↵
↵
 ↵
↵
↵
ByteDance — Moscow Workshops Online Contest is an opportunity to participate as teams in this camp.↵
↵
You can find more information about this training camp, including registration and prizes at [https://programcamp.bytedance.com/](https://programcamp.bytedance.com/).↵
↵
**Important update**: please be informed that the Bytedance online team contest ends **25 minutes after** the Codeforces round does. For this reason, we ask you not to discuss the problems publicly during that time, **until 3pm MSK**. Code and testcases public display will also be disabled during that time. Thank you for your understanding.↵
↵
**Scoring distribution**:↵
↵
**Div. 2: 750-1000-1500-2000-2500-3000**↵
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**Div. 1: 500-1000-1500-2000-2250-3500**↵
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**Final update**: thanks for participating, hope you had fun! Let's hear it for the winners:↵
↵
**Div. 1** (the only contestants to solve 5 problems):↵
↵
1. [user:tourist,2020-12-19]↵
2. [user:Um_nik,2020-12-19]↵
3. [user:142857,2020-12-19]↵
4. [user:maroonrk,2020-12-19]↵
5. [user:DmitryGrigorev,2020-12-19]↵
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**Div. 2**:↵
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1. [user:spepd,2020-12-19] — the only Div.2 contestant to solve 5 problems!↵
2. [user:LebronDurant,2020-12-19]↵
3. [user:diuven_fanclub,2020-12-19]↵
4. [user:-sakuro,2020-12-19]↵
5. [user:CTP_314,2020-12-19]↵
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Here's a [half-baked version of the(now complete) editorial](https://mirror.codeforces.com/blog/entry/85750).↵
↵
Happy winter holidays to all of you, and see you again on the leaderboards!
↵
Hello, Codeforces community!↵
↵
I'm glad to invite you to Codeforces Round #691 (Div. 1) and Codeforces Round #691 (Div. 2), which will be held on [contest_time:1459]. **The round will be rated for both divisions.**↵
↵
The problems were taken (mostly) from the ByteDance — Moscow Workshops Online Contest, which is happening at the same time. They were prepared by me, [user:AndreySergunin,2020-12-17], and [user:amethyst0,2020-12-17]. We are very thankful to the testers: [user:low_,2020-12-18], [user:__rkm__,2020-12-18], [user:ecnerwala,2020-12-18], [user:Tima,2020-12-18], [user:IITianUG,2020-12-18], [user:thenymphsofdelphi,2020-12-18], [user:mohammedehab2002,2020-12-18], [user:namanbansal013,2020-12-19], [user:Redux,2020-12-19] for their time and great feedback. Also big thanks to Bytedance instructors [user:chenjb,2020-12-18] and [user:MiFaFaOvO,2020-12-18] for testing and reviewing the Bytedance online contest.↵
↵
ByteDance is a global technology company operating a range of platforms that allow people across languages, cultures and geographies to create, discover and connect. **ByteDance** has partnered with **Moscow Workshops** and **Codeforces** to organize a top tier and exclusive training camp for the International Collegiate Programming Contest. The upcoming Programming Camp will be held in Beijing from February 20th to 26th, 2021.↵
↵
↵
 ↵
↵
↵
ByteDance — Moscow Workshops Online Contest is an opportunity to participate as teams in this camp.↵
↵
You can find more information about this training camp, including registration and prizes at [https://programcamp.bytedance.com/](https://programcamp.bytedance.com/).↵
↵
**Important update**: please be informed that the Bytedance online team contest ends **25 minutes after** the Codeforces round does. For this reason, we ask you not to discuss the problems publicly during that time, **until 3pm MSK**. Code and testcases public display will also be disabled during that time. Thank you for your understanding.↵
↵
**Scoring distribution**:↵
↵
**Div. 2: 750-1000-1500-2000-2500-3000**↵
↵
**Div. 1: 500-1000-1500-2000-2250-3500**↵
↵
**Final update**: thanks for participating, hope you had fun! Let's hear it for the winners:↵
↵
**Div. 1** (the only contestants to solve 5 problems):↵
↵
1. [user:tourist,2020-12-19]↵
2. [user:Um_nik,2020-12-19]↵
3. [user:142857,2020-12-19]↵
4. [user:maroonrk,2020-12-19]↵
5. [user:DmitryGrigorev,2020-12-19]↵
↵
**Div. 2**:↵
↵
1. [user:spepd,2020-12-19] — the only Div.2 contestant to solve 5 problems!↵
2. [user:LebronDurant,2020-12-19]↵
3. [user:diuven_fanclub,2020-12-19]↵
4. [user:-sakuro,2020-12-19]↵
5. [user:CTP_314,2020-12-19]↵
↵
Here's a [
↵
Happy winter holidays to all of you, and see you again on the leaderboards!
