UID: 17048, Registered at 2025-4-11 15:32:28, last login at 2025-4-11 15:32:28, currently offline.
Solved 4 problems, RP: 21 (No. 7140)
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