UID: 40, Registered at 2025-3-23 19:13:23, last login at 2025-3-29 14:57:52, currently offline.
Solved 7 problems, RP: 34 (No. 33)
By signing up a Hydro universal account, you can submit code and join discussions in all online judging services provided by us.
Using your Hydro universal account
