UID: 5565, Registered at 2023-9-1 12:39:29, last login at 2024-3-19 20:31:54, currently offline.
Solved 2 problems, RP: 7 (No. 4632)
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