UID: 33823, Registered at 2026-4-7 15:53:04, last login at 2026-4-7 15:53:04, currently offline.
Solved 6 problems, RP: 26 (No. 12215)
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