Dear Codeforces community,

We're excited to invite you to TOKI Regular Open Contest (TROC) #10!

Key details:

• Rated
• Contest links: Div 1 and Div 2
• Time: 1 February 2020, 19:05 UTC+7
• Style: full feedback, with penalty (time taken to reach current score) + (4-minute penalty per wrong submission)
• Scoring: You get the score assigned to the problem when you fully solve it
• Writers: hocky Pa.Nic phillotunru1
• Duration: 2 hours
• Problems: 6 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

Scoring distribution:

• Div 2: 100 — 200 — 300 — 400 — 500 — 500
• Div 1: 100 — 200 — 300 — 300 — 450 — 500

Please register to the contest, and we hope you will enjoy TROC #10!

UPD1: Contest is over! Our Top 5:

Div 1:

1. Egor
2. antontrygubO_o
3. wiwitrifai
4. Yahor Dubovik
5. Pyqe

Div 2:

1. Benq
2. nikolapesic2802
3. nirvana
4. buko
5. aropan

Editorial is available here (English on page 5).

You can upsolve the problems here.

We would like to thank fushar as technical committee, and also ayaze and IgoRamli as testers.

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