UID: 22494, Registered at 2025-9-16 16:32:50, last login at 2025-9-16 16:32:50, currently offline.
Solved 11 problems, RP: 38 (No. 6880)
By signing up a CodeFun2000 universal account, you can submit code and join discussions in all online judging services provided by us.
Using your CodeFun2000 universal account