UID: 19887, Registered at 2025-8-4 10:03:58, last login at 2025-8-4 10:03:58, currently offline.
Solved 3 problems, RP: 11 (No. 11656)
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