UID: 2755, Registered at 2023-4-20 13:47:31, last login at 2023-4-25 15:51:26, currently offline.
Solved 2 problems, RP: 17.52 (No. 2882)
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