UID: 2002, Registered at 2024-9-3 10:02:53, last login at 2025-3-31 14:38:59, currently offline.
Solved 2 problems, RP: 12 (No. 574)
By signing up a HFOJ universal account, you can submit code and join discussions in all online judging services provided by us.
Using your HFOJ universal account