UID: 43420, Registered at 2026-6-12 18:25:09, last login at 2026-6-24 16:36:10, currently offline.
Solved 3 problems, RP: 19 (No. 12138)
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