Codeforces Round #616 (Div. 1, Div. 2) starts in ~4 hours. Please, join by this link https://codeforces.com/contests/1290,1291

Codeforces Round 617 (Div. 3) starts in ~4 hours. Please, join by the link
https://codeforces.com/contests/1296

Codeforces celebrates an unusual birthday: 10 years is a symbolic and important date.

More than 700 rounds and open competitions have been hosted, the number of problems in the archive is close to 6000, more than 60 million submissions have been judged.

I appeal to the entire Codeforces audience to support the platform by participating in the anniversary crowdfunding campaign. Your donation will be a contribution to the future of Codeforces, will help its development and work. We need resources to continue to host rounds, not to stop developing, to innovate and to maintain the existing infrastructure.

— Mike Mirzayanov

https://codeforces.com/10years

Codeforces Round #618 (Div. 1, Div. 2) starts in ~4 hours. Please, join by this link https://codeforces.com/contests/1299,1300

Educational Codeforces Round 82 (rated for Div.2) starts in ~4 hours. Please, join by the link https://codeforces.com/contests/1303

Codeforces Round 619 (Div. 2) starts in ~4 hours. Please, join by the link https://codeforces.com/contests/1301

Codeforces Round 620 (Div. 2) starts in ~4 hours. Please, join by the link https://codeforces.com/contests/1304

Codeforces Round #621 (Div. 1 + Div. 2) starts in ~4 hours. Please, join by the link https://codeforces.com/contests/1307

Codeforces Round 622 (Div. 2) starts in ~4 hours. Please, join by the link https://codeforces.com/contests/1313

Codeforces Round #623 (Div. 1, Div. 2, based on VK Cup 2019-2020 - Elimination Round, Engine) starts in ~4 hours. Please, join by this link https://codeforces.com/contests/1314,1315?locale=en

Last call! Codeforces Round #623 (Div. 1, Div. 2, based on VK Cup 2019-2020 - Elimination Round, Engine) starts in ~1 hour. Please, join by this link https://codeforces.com/contests/1314,1315?locale=en

Codeforces Round 624 (Div. 3) starts in ~4 hours. Please, join by the link https://codeforces.com/contests/1311

💥Kotlin Heroes: Episode 3💥 starts in ~ 4 hours.

The round is unrated.

- Top three winners will get prizes of $512, $256, and $128 respectively;

- Top 50 will win a Kotlin Heroes t-shirt and an exclusive Kotlin badge;

- Competitors solving at least one problem will enter into a draw for one of 50 Kotlin Heroes t-shirts.

We will be glad to see you among the participants!

Please, join by the link https://codeforces.com/contests/1297

Kotlin Heroes: Episode 3 (unrated, 100 t-shirts + cash prizes) starts in ~1 hour.

Please, join by the link
https://codeforces.com/contests/1297

Codeforces Round #625 (Div. 1, Div. 2, based on Technocup 2020 Final Round) starts in ~4 hours. Please, join by this link https://codeforces.com/contests/1320,1321

Ozon Tech Challenge 2020 (Div.1 + Div.2, Rated, T-shirts + prizes!) starts in ~ 4 hours.

The round is open and rated for everybody!

🎒Top 10 participants will receive stylish branded backpacks and branded T-shirts;
⚡️11-20th participants will receive compact portable chargers for 10000 mAh and branded T-shirts;
👕21-60th participants will get branded t-shirts;
🎲another 30 T-shirts will be played among the rest of the participants, who solved at least two problems, randomly.

Please, join by the link https://codeforces.com/contests/1305

CodeCraft-20 (Div. 2) starts in ~4 hours. Please, join by the link https://codeforces.com/contests/1316

Codeforces Round #626 (Div. 1, Div. 2, based on Moscow Open Olympiad in Informatics) starts in ~4 hours. Please, join by this link https://codeforces.com/contests/1322,1323

Educational Codeforces Round 83 (rated for Div.2) starts in ~4 hours. Please, join by the link https://codeforces.com/contests/1312

Codeforces Round 627 (Div. 3) starts in ~4 hours. Please, join by the link
https://codeforces.com/contests/1324

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