UID: 106, Registered at 2025-1-23 17:13:19, last login at 2025-1-28 0:34:45, currently offline.
Solved 17 problems, RP: 115 (No. 9)
By signing up a QFNU-OJ universal account, you can submit code and join discussions in all online judging services provided by us.
Using your QFNU-OJ universal account