UID: 5201, Registered at 2023-8-22 16:00:52, last login at 2023-8-24 10:17:57, currently offline.
Solved 2 problems, RP: 7.84 (No. 4412)
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