UID: 4101, Registered at 2023-7-19 17:22:01, last login at 2023-7-19 17:22:35, currently offline.
Solved 5 problems, RP: 23 (No. 2471)
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