Hi!↵
↵
I’d like to invite you to Codeforces Round #431 which takes place at [16:35 MSK on 1 September](https://www.timeanddate.com/worldclock/fixedtime.html?day=01&month=9&year=2017&hour=16&min=35&sec=0&p1=166). Please note that the timing is again unusual.↵
↵
One of the problems is created by [user:adedalic,2017-08-31] and [user:KAN,2017-08-31], while the others are authored by me. This is my second round here, and it couldn’t have been realized without efforts of: [user:AlexFetisov,2017-08-31], [user:ifsmirnov,2017-09-01], [user:Tommyr7,2017-08-31], [user:winger,2017-08-31] and [user:wu_qing,2017-09-01] who tested the problems; [user:KAN,2017-08-31] who appears to be a meticulous guide throughout the preparation process; and [user:MikeMirzayanov,2017-08-31] with the supercalifragilisticexpialidocious Codeforces and Polygon platforms — my deep gratitude to you!↵
↵
Both divisions are welcomed as **rated** contestants and will have **five problems** to solve in **two hours**. The scoring will be announced later.↵
↵
Once upon a time, in a virtual galaxy far, far away, there was a lovely young singer by the name of Hatsune Miku. One lovely day, Miku got a job as a vocalist in Vocaloid, and that was very exciting. People said, “Oh, Miku, you sing so accurately! And so emotive, too!” Soon everyone was talking about Miku, and there were songs and paintings and even lives for Miku. Miku liked that.↵
↵
And you, are to start a journey following the emotions in Miku’s voice. Oh, by the way, a late Happy Birthday to her — August 31 is (was) her tenth anniversary.↵
↵
See you then, and wish everyone few bugs and fair ratings.↵
↵
**UPD 1** Scoring will be:↵
↵
* **500-1000-1500-2000-2500** for Division 2;↵
* **500-1000-1750-1750-2500** for Division 1.↵
↵
**UPD 2** System test is done. Congratulations to the winners!↵
↵
### Division 1↵
1. [user:dotorya,2017-09-01]↵
2. [user:Reyna,2017-09-01]↵
3. [user:SkyDec,2017-09-01]↵
4. [user:V--o_o--V,2017-09-01]↵
5. [user:koosaga,2017-09-01]↵
↵
### Division 2↵
1. [user:lmmortalCO,2017-09-01] (solved all problems!)↵
2. [user:ltg2030,2017-09-01]↵
3. [user:FoolMike,2017-09-01]↵
4. [user:HatsuneMiku,2017-09-01]↵
5. [user:MisakaKuma,2017-09-01]↵
↵
Also, thanks to all who participated! Nicely done!↵
↵
Check out the [editorial with hints](http://mirror.codeforces.com/blog/entry/54233)!
↵
I’d like to invite you to Codeforces Round #431 which takes place at [16:35 MSK on 1 September](https://www.timeanddate.com/worldclock/fixedtime.html?day=01&month=9&year=2017&hour=16&min=35&sec=0&p1=166). Please note that the timing is again unusual.↵
↵
One of the problems is created by [user:adedalic,2017-08-31] and [user:KAN,2017-08-31], while the others are authored by me. This is my second round here, and it couldn’t have been realized without efforts of: [user:AlexFetisov,2017-08-31], [user:ifsmirnov,2017-09-01], [user:Tommyr7,2017-08-31], [user:winger,2017-08-31] and [user:wu_qing,2017-09-01] who tested the problems; [user:KAN,2017-08-31] who appears to be a meticulous guide throughout the preparation process; and [user:MikeMirzayanov,2017-08-31] with the supercalifragilisticexpialidocious Codeforces and Polygon platforms — my deep gratitude to you!↵
↵
Both divisions are welcomed as **rated** contestants and will have **five problems** to solve in **two hours**. The scoring will be announced later.↵
↵
Once upon a time, in a virtual galaxy far, far away, there was a lovely young singer by the name of Hatsune Miku. One lovely day, Miku got a job as a vocalist in Vocaloid, and that was very exciting. People said, “Oh, Miku, you sing so accurately! And so emotive, too!” Soon everyone was talking about Miku, and there were songs and paintings and even lives for Miku. Miku liked that.↵
↵
And you, are to start a journey following the emotions in Miku’s voice. Oh, by the way, a late Happy Birthday to her — August 31 is (was) her tenth anniversary.↵
↵
See you then, and wish everyone few bugs and fair ratings.↵
↵
**UPD 1** Scoring will be:↵
↵
* **500-1000-1500-2000-2500** for Division 2;↵
* **500-1000-1750-1750-2500** for Division 1.↵
↵
**UPD 2** System test is done. Congratulations to the winners!↵
↵
### Division 1↵
1. [user:dotorya,2017-09-01]↵
2. [user:Reyna,2017-09-01]↵
3. [user:SkyDec,2017-09-01]↵
4. [user:V--o_o--V,2017-09-01]↵
5. [user:koosaga,2017-09-01]↵
↵
### Division 2↵
1. [user:lmmortalCO,2017-09-01] (solved all problems!)↵
2. [user:ltg2030,2017-09-01]↵
3. [user:FoolMike,2017-09-01]↵
4. [user:HatsuneMiku,2017-09-01]↵
5. [user:MisakaKuma,2017-09-01]↵
↵
Also, thanks to all who participated! Nicely done!↵
↵
Check out the [editorial with hints](http://mirror.codeforces.com/blog/entry/54233)!
