Dear Codeforces community,

We're excited to invite you to TOKI Regular Open Contest (TROC) #8!

Key details:

• Rated
• Contest links: Div 1 and Div 2
• Time: 28 September 2019, 19:05 UTC+7
• Style: full feedback, 8-minute penalty per wrong submission
• Scoring: You get the score assigned to the problem when you fully solve it
• Writers: AMnu, faustaadp, halohalo, ..vince
• Duration: 2 hours
• Problems: 5 for every division
• Allowed languages: C, C++11, Pascal, Java, Python 3

The round uses two divisions system:

• Users with rating less than 2000 or not yet rated should participate in Div 2
• Users with rating at least 2000 should participate in Div 1

Please register to the contest, and we hope you will enjoy TROC #8!

UPD1: Scoring distribution:

• Div 2: 100 — 200 — 400 — 500 — 750
• Div 1: 150 — 200 — 400 — 650 — 850

UPD2: Contest is over! Our Top 5:

Div 1:

1. KrK
2. almogwald
3. Pyqe
4. DystoriaX
5. Berted

Div 2:

1. arknave
2. Son
3. Yahor Dubovik
4. robinyu
5. meneketehe

Editorial is available here.

You can upsolve the problems here.

Thank you for participating and see you on the next contest!