🔥Codeforces Global Round 31 (Div. 1 + Div. 2)🔥 starts on the 19th of December at 14:35 UTC.

It is the third round of Codeforces Global Rounds 2025 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/2180?locale=en

🔥Codeforces Global Round 31 (Div. 1 + Div. 2)🔥 (Rated for Everybody, 50 Prize T-Shirts!) starts in ~4 hours.
Please, join by the link https://codeforces.com/contests/2180?locale=en

Last call! 🔔Codeforces Global Round 31 (Div. 1 + Div. 2, Rated for Everybody, 50 Prize T-Shirts!)🔔 starts in ~1 hour.
Please, join by the https://codeforces.com/contests/2180

🔥ICPC 2025 Online Winter Challenge powered by Huawei🔥

Start: December 26, 2025 11:00 UTC
Finish: January 11, 2026 10:59 UTC

It is an individual unrated competition.

The top-scoring participants will receive great prizes, including travel and an invitation to the 50th Annual ICPC World Finals in a guest role, and cash prizes up to €12 000 for the first place.

We will be glad to see you among the participants!

Please, join by the link  https://codeforces.com/contests/2177

⏰ Reminder: the event will start in 2 hours

ICPC 2025 Online Winter Challenge powered by Huawei

Start: December 26, 2025 11:00 UTC
Finish: January 11, 2026 10:59 UTC

It is an individual unrated competition.

The top-scoring participants will receive great prizes, including travel and an invitation to the 50th Annual ICPC World Finals in a guest role, and cash prizes up to €12 000 for the first place.

We will be glad to see you among the participants!

Please, join by the link  https://codeforces.com/contests/2177

🌲The year is coming to an end — time to make wishes and take part in Good Bye 2025 round on Codeforces.

💡"Good Bye 2025"💡 starts on the 27th of December at 14:35 UTC.

It is rated and open for everyone!

Please, join by the link https://codeforces.com/contests/2178

⏰ Reminder: the event will start in 2 hours

⛄️ The year is coming to an end — time to make wishes and take part in Good Bye 2025 round on Codeforces.

❄️ "Good Bye 2025" ❄️ starts on the 27th of December at 14:35 UTC.

It is rated and open for everyone!

Please, join by the link https://codeforces.com/contests/2178

🎉 The first contest of the year is coming!

❄️Hello 2026❄️ starts on the 7th of January at 14:35 UTC.

It is rated and open for everyone!

Please, join by the link https://codeforces.com/contests/2183