UID: 8, Registered at 2025-12-20 0:03:47, last login at 2026-9-29 21:22:57, currently offline.
Solved 10 problems, RP: 96.78 (No. 6)
这种东西,小范围里享受就得了
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