UID: 5318, Registered at 2023-8-25 14:58:33, last login at 2023-8-25 15:00:02, currently offline.
Solved 2 problems, RP: 6.1 (No. 4803)
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