UID: 6999, Registered at 2024-2-11 14:27:31, last login at 2024-2-14 1:26:40, currently offline.
Solved 4 problems, RP: 9 (No. 4020)
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