UID: 2135, Registered at 2023-4-11 10:07:45, last login at 2023-8-15 10:36:45, currently offline.
Solved 3 problems, RP: 20.2 (No. 2658)
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