UID: 1004, Registered at 2025-10-9 14:37:11, last login at 2025-10-10 8:26:37, currently offline.
Solved 5 problems, RP: 28 (No. 167)
By signing up a USTC-OJ universal account, you can submit code and join discussions in all online judging services provided by us.
Using your USTC-OJ universal account
