UID: 20931, Registered at 2025-9-1 16:01:07, last login at 2025-9-1 16:01:07, currently offline.
Solved 23 problems, RP: 93 (No. 6750)
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