UID: 2797, Registered at 2025-9-2 14:50:07, last login at 2025-10-10 10:47:30, currently offline.
Solved 14 problems, RP: 43 (No. 491)
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