Dec 23, 2025 · Happy new year, Codeforces! We are glad to invite you to take part in Hello 2026, which will start on Wednesday, January 7, 2026 at 06:35 UTC-8. You will be given 9 problems and 3 hours …

Codeforces. Programming competitions and contests, programming community

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Codeforces. Programming competitions and contests, programming community Contest rating: 2154 (max. master, 2154) Contribution: 0 Friend of: 735 users Last visit: 4 years ago Registered: 9 years …

Codeforces. Programming competitions and contests, programming community

3 days ago · I am delighted to invite you to the first Div. 4 round of the year: Codeforces Round (Div. 4)! The round is scheduled for Sunday, January 18, 2026 at 06:35 UTC-8.

On one hand, Codeforces is a social network dedicated to programming and programming contests. On the other hand, it is a platform where contests are held regularly, the participant's skills are reflected …

Codeforces Extensions – MohamedAboOkail – 5 years ago Gym Finder – NightRage – 4 years ago Userscript: table view in Catalog – -is-this-fft- – 4 years ago Finally, semantic search for competitive …

Calendar Help Calendar Codeforces(c) Copyright 2010-2026 Mike Mirzayanov The only programming contests Web 2.0 platform Server time: Jan/15/2026 00:43:52(f1). Desktop version, switch to mobile …

Codeforces. Programming competitions and contests, programming community One hot summer day Pete and his friend Billy decided to buy a watermelon. They chose the biggest and the ripest one, in …