Codeforces Official

Codeforces Round 1117 (Div. 2) will take place on 17 August 2026 at 14:35 UTC. Please, join by the link https://codeforces.com/contests/2257

⏰ Reminder: the event will start in 2 hours ICPC 2026 Online Challenge 1 powered by Huawei Start: August 14, 2026 11:00 UTC Finish: August 28, 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/2251

🔥ICPC 2026 Online Challenge 1 powered by Huawei🔥 Start: August 14, 2026 11:00 UTC Finish: August 28, 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/2251

Codeforces Round 1116 (Div. 1, Div. 2) starts in ~2 hours. Please, join by the link https://codeforces.com/contests/2255,2256

Codeforces Round 1116 (Div. 1, Div. 2) will take place 9 August 2026 at 14:35 UTC. Please, join by the link https://codeforces.com/contests/2255,2256

Educational Codeforces Round 193 (Rated for Div. 2) starts in ~2 hours.  Please, join by the link https://codeforces.com/contests/2253

Educational Codeforces Round 193 (Rated for Div. 2) starts on 7 August 2026 at 14:35 UTC. The series of Educational Rounds continues thanks to the support of Neapolis University of Paphos (NUP), with scholarships provided by JetBrains. Please, join by the link https://codeforces.com/contests/2253

Codeforces Round 1115 (Div. 2) starts in ~2 hours.  Please, join by this link https://codeforces.com/contests/2252

Codeforces Round 1115 (Div. 2) will take place on 6 August 2026 at 14:35 UTC. Please, join by the link https://codeforces.com/contests/2252

Codeforces Round 1114 (Div. 3) starts in ~2 hours. Please, join by the link https://codeforces.com/contests/2254

Codeforces Round 1114 (Div. 3) will take place on 4 August 2026 at 14:35 UTC. Please, join by the link https://codeforces.com/contests/2254

Codeforces Round 1113 (Div. 2) starts in ~2 hours.  Please, join by this link https://codeforces.com/contests/2248

Codeforces Round 1113 (Div. 2) will take place on 1 August 2026 at 14:35 UTC. Please, join by the link https://codeforces.com/contests/2248

Codeforces Round 1112 (Div. 1, Div. 2) starts in ~2 hours. Please, join by the link https://codeforces.com/contests/2249,2250

Codeforces Round 1112 (Div. 1, Div. 2) will take place 26 July 2026 at 14:35 UTC. Please, join by the link https://codeforces.com/contests/2249,2250

Codeforces Round 1111 (Div. 2) starts in ~2 hours.  Please, join by this link https://codeforces.com/contests/2247

Codeforces Round 1111 (Div. 2) will take place on 18 July 2026 at 14:35 UTC. Please, join by the link https://codeforces.com/contests/2247

🌟Spectral::Cup 2026 Round 3🌟(Codeforces Round 1110, Div. 1 + Div. 2, rated, prizes) starts in ~1 hour. Please, join by the link https://codeforces.com/contests/2245

🌟Spectral::Cup 2026 Round 3🌟(Codeforces Round 1110, Div. 1 + Div. 2, rated, prizes) starts in ~4 hours. Please, join by the link https://codeforces.com/contests/2245

🌟Spectral::Cup 2026 Round 3 (Codeforces Round 1110, Div. 1 + Div. 2)🌟 starts on 16 July 2026 at 14:35 UTC. It is rated and open for everyone! Round will be held with the support of Spectral::Technologies, an HFT fund building trading strategies and low-latency infrastructure for global markets. 🎁 Prizes for Round 3: Personalized hoodies for top 30 participants. It is the final round of the Tournament. Top 3, Top 15 and 30 randomly selected participants will receive great prizes 🏆 Don’t miss the round! Please, join by the link https://codeforces.com/contests/2245