UID: 16919, Registered at 2025-4-10 13:09:49, last login at 2025-4-10 13:09:49, currently offline.
Solved 11 problems, RP: 50 (No. 4912)
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