🔥Codeforces Global Round 10🔥 starts on the 16th of August at 14:35 UTC.

It is the tenth round of Codeforces Global Rounds supported by XTX Markets.

The round is open and rated for everybody!

The prizes for this round:

👕30 best participants get a t-shirt.

👕20 t-shirts are randomly distributed among those with ranks between 31 and 500, inclusive.

We will be glad to see you among the participants!

Please, join by the link https://codeforces.com/contests/1392

🔥Codeforces Global Round 10 (Rated for Everybody, 50 Prize T-Shirts!)🔥 starts in ~2 hours.

Please, join by the link https://codeforces.com/contests/1392

Codeforces Round #665 (Div. 2) starts on the 21st of August at 14:35 UTC.
Please, join by the link https://codeforces.com/contests/1401

Codeforces Round #665 (Div. 2) starts in ~2 hours. Please, join by the link https://codeforces.com/contests/1401

Pavel Mavrin presents a new lesson of the course "ITMO Academy: pilot course" in the EDU section! This time he talks about binary search.

You can find it here https://codeforces.com/edu/course/2/lesson/6

Educational Codeforces Round 94 (rated for Div. 2) starts on the 25th of August at 14:35 UTC.
Please, join by the link https://codeforces.com/contests/1400

Due to scheduled maintenance, the services are temporarily unavailable. They will be operational in about 2.5 hours or less.

Educational Codeforces Round 94 (rated for Div. 2) starts in ~2 hours.
Please, join by the link https://codeforces.com/contests/1400

CEOI 2020 day 1 online mirror (unrated, IOI format) starts on the 26th of August at 12:05 UTC. Please, join by the link https://codeforces.com/contests/1402

CEOI 2020 day 1 online mirror (unrated, IOI format) starts in ~2 hours. Please, join by the link https://codeforces.com/contests/1402

CEOI 2020 day 2 online mirror (unrated, IOI format) starts on the 28th of August at 12:05 UTC. Please, join by the link https://codeforces.com/contests/1403

CEOI 2020 day 2 online mirror (unrated, IOI format) starts in ~2 hours. Please, join by the link https://codeforces.com/contests/1403

Codeforces Round #666 (Div. 1, Div. 2) starts on the 30th of August at 14:35 UTC.
Please, join by the link https://codeforces.com/contests/1396,1397

Codeforces Round #666 (Div. 1, Div. 2) starts in ~2 hours. Please, join by the link https://codeforces.com/contests/1396,1397

Codeforces Round #667 (Div. 3) will take place on the 4th of September at 14:35 UTC.
Please, join by the link https://codeforces.com/contests/1409

Codeforces Round #667 (Div. 3) starts in ~2 hours. Please, join by the link https://codeforces.com/contests/1409

Codeforces Round #668 (Div. 1, Div. 2) starts on the 6th of September at 14:35 UTC.
Please, join by the link https://codeforces.com/contests/1404,1405

Codeforces Round #668 (Div. 1, Div. 2) starts in ~2 hours. Please, join by the link https://codeforces.com/contests/1404,1405

Codeforces Round #669 (Div. 2) will take place on the 8th of September at 14:35 UTC.
Please, join by the link https://codeforces.com/contests/1407

Codeforces Round #669 (Div. 2) starts in ~2 hours. Please, join by the link https://codeforces.com/contests/1407

A new lesson in the EDU section is presented by Vitaly Aksenov - the researcher at ITMO University, the member of the Jury Committee of several olympiads such as NERC, Bioinformatics Contest, Russian Code Cup and etc, Ph.D. The theme of the lesson is Disjoint Sets Union (DSU).

Please, join the "ITMO Academy: pilot course" by the link https://codeforces.com/edu/courses