4 Kyu
usedchang

Country/Region	China
Birth Year	2006
Codeforces ID	usedchang

Contest Status

• Algorithm
• Heuristic

Rank	10794th (Top 8.46%)
Rating	1203
Highest Rating	1210 ― 4 Kyu (+190 to promote)
Rated Matches	69
Last Competed	2026/08/22

Competition History Last Contest Result