UID: 19880, Registered at 2025-8-3 21:18:45, last login at 2025-8-3 21:18:45, currently offline.
Solved 12 problems, RP: 42 (No. 6575)
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