UID: 1583, Registered at 2021-9-10 12:49:28, last login at 2023-10-25 20:48:08, currently offline.
Solved 1 problems, RP: 6 (No. 4172)
By signing up a HydroOJ universal account, you can submit code and join discussions in all online judging services provided by us.
Using your HydroOJ universal account