https://basecamp.eolymp.com/en/posts/7u074ngkv127l3fl0m33bf5gck

Hello, Codeforces!

We (Denisov, Karavaiev, perekopskiy) are glad to introduce to you Codeforces Round 660 (Div. 2), which will happen on 30.07.2020 17:35 (Московское время). The round will be rated for the participants with rating lower than 2100, although higher rated users are more than welcome to take part out of competition.

Huge thanks to those who helped make this round possible:

• adedalic for amazing coordinating and reviewing the round, as well as helping with many different things.
• Karavaiev, perekopskiy for creating problems and preparation.
• dorijanlendvaj, Tlatoani, BOGDAN_, oknehcajd, awoo, antontrygubO_o, Osama_Alkhodairy, coderz189, errorgorn, ilyasiv, Tathagat_shah, ermakov22 for testing and providing invaluable feedback.
• MikeMirzayanov for Codeforces and Polygon platforms.

There will be 5 problems and 2 hours to solve them.

We really hope you enjoy our first contest!

UPD: Here is the score distribution:

750—1000—1500—2000—2750

UPD: Editorial is published!

UPD: Congratulations to the winners!

Div. 1:

1. neal

2. Um_nik

3. heno239

4. jiangly

5. dreamoon_love_AA

Div. 2:

1. okikust

2. SpatialMovement

3. laralalala

4. KD-Tree

5. Mai_madarchod_hu