UID: 22320, Registered at 2025-9-15 15:23:13, last login at 2025-9-17 7:27:38, currently offline.
Solved 6 problems, RP: 30 (No. 10139)
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