Codeforces Round #864 (Div. 2) starts in ~2 hours. Please, join by this link https://codeforces.com/contests/1797

Codeforces Round #865 (Div. 1, Div. 2) will take place on the 9th of April at 14:45 UTC. 
Please, join by the link https://codeforces.com/contests/1815,1816

Codeforces Round #865 (Div. 1, Div. 2) starts in ~2 hours.  Please, join by this link https://codeforces.com/contests/1815,1816

Codeforces is back! Unfortunately, the planned changes to the database took significantly more time than I expected (too much data!). Next time, I'll have to be more careful and take more time, but there won't be any downtime like this. I apologize for the inconvenience. Mike.

🔥ICPC 2023 Online Spring Challenge powered by Huawei🔥

Start: April 13, 2023 11:00 UTC (UTC+0)
Finish: April 27, 2023 10:59 UTC (UTC+0)

It is an individual unrated competition.

HUAWEI has prepared a new challenging problem — Buffer Sharing in Multi-Tenant Database Environment.

The top-scoring participants will receive great prizes, including the travel trip to the 46th Annual ICPC World Finals in a guest role, souvenir T-shirts, and cash prizes up to $15000 for the first place.

We will be glad to see you among the participants!

Please, join by the link https://codeforces.com/contests/1813?locale=en

Codeforces Round #866 (Div. 1, Div. 2) will take place on the 15th of April at 09:05 UTC.
Please, join by the link https://codeforces.com/contests/1819,1820

Codeforces Round #866 (Div. 1, Div. 2) starts in ~2 hours. Please, join by this link https://codeforces.com/contests/1819,1820

Educational Codeforces Round 147
(rated for Div. 2) starts on the 20th of April at 14:35 UTC.
Please, join by the link https://codeforces.com/contests/1821

Educational Codeforces Round 147
(rated for Div. 2) starts in ~2 hours.
Please, join by the link https://codeforces.com/contests/1821

Codeforces Round #867 (Div. 3) will take place on the 24th of April at 14:35 UTC.
Please, join by the link https://codeforces.com/contests/1822

Codeforces Round #867 (Div. 3) starts in ~2 hours.  Please, join by this link https://codeforces.com/contests/1822

Last 24 hours left to take part in 🔥ICPC 2023 Online Spring Challenge powered by Huawei🔥 (unrated, prizes)

Please, join by the link https://codeforces.com/contests/1813

Codeforces Round #868 (Div. 2) will take place on the 27th of April at 14:35 UTC.
Please, join by the link https://codeforces.com/contests/1823

Codeforces Round #868 (Div. 2) starts in ~2 hours.  Please, join by this link https://codeforces.com/contests/1823

Codeforces Round #869 (Div. 1, Div. 2) will take place on the 29th of April at 14:35 UTC. 
Please, join by the link https://codeforces.com/contests/1817,1818

Codeforces Round #869 (Div. 1, Div. 2) starts in ~2 hours. Please, join by this link https://codeforces.com/contests/1817,1818

Codeforces Round #870 (Div. 2) will take place on the 5th of May at 14:35 UTC.
Please, join by the link https://codeforces.com/contests/1826

Codeforces Round #870 (Div. 2) starts in ~2 hours.  Please, join by this link https://codeforces.com/contests/1826

Codeforces Round #871 (Div. 4) will take place on the 6th of May at 14:35 UTC.
Please, join by the link https://codeforces.com/contests/1829

Codeforces Round #871 (Div. 4) starts in ~2 hours.  Please, join by this link https://codeforces.com/contests/1829