True, their dominance is hard to miss. Interesting topic! Curious to see the discussion and insights here.

Thank you for the detailed editorial! Appreciate the effort put into writing this.

Congrats on the great progress! For me, the most challenging part is often quickly identifying the right algorithm/data structure under pressure. Keep up the great work!

Thanks for the announcement and for providing English statements!

hope to reach Specialist

Excited for another Div. 3! Thanks to all the authors and testers.

Wow, this looks incredibly useful! The built-in editor and dark theme are fantastic features. Great job!

hope to reach Specialist

"Over a year in the making? These problems better be ✨ legendary! ✨ Can't wait!"

Interesting observation! The pattern forming Sierpiński's Triangle makes sense because the problem's recurrence follows Pascal’s Triangle modulo 2. Each row is built from the sum of two numbers above it, and mod 2 removes carries, leaving behind the fractal-like structure. Crazy how combinatorics and fractals connect! O_O

I joined Codeforces to have fun… Now I’m just staring at "Wrong answer on test 3" like it personally betrayed me. :/

:3

CAPTCHA is blocking the API even outside contests. Any official update or workaround

cry for not testing — relatable moment. XD

Wow, has this example been wrong for 11 years? Maybe it was a secret test of patience. But honestly, the argument seems interesting. Can anyone confirm?