Please, try EDU on Codeforces! New educational section with videos, subtitles, texts, and problems. ×

 
 
 
 
Specialist

up-and-down

  • User''s contest rating in Codeforces community Contest rating: 1522 (max. master, 2144)
  • User''s contribution into Codeforces community Contribution: +9
  • Friend of: 27 users
  • Last visit: 22 months ago
  • Registered: 4 years ago
  • up-and-down's blog Blog entries (5), comments