UID: 1142, Registered at 2023-3-21 14:36:41, last login at 2023-9-7 17:54:30, currently offline.
Solved 2 problems, RP: 5.65 (No. 5081)
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