UID: 5440, Registered at 2023-8-28 14:25:33, last login at 2023-9-3 16:41:37, currently offline.
Solved 2 problems, RP: 20.58 (No. 10575)
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