Codeforces functionality may be limited from June 18, 19:00 (UTC) to June 19, 3:00 AM (UTC) due to technical maintenance. Polygon will work as usual. ×

  • User''s contest rating in Codeforces community Contest rating: 1345 (max. pupil, 1345)
  • User''s contribution into Codeforces community Contribution: 0
  • Friend of: 25 users
  • Last visit: 18 hours ago
  • Registered: 15 months ago
  • ChenWenxin2009s comments Comments
  • Your talks with ChenWenxin2009 Talks | Send message