UID: 19727, Registered at 2025-7-26 13:00:26, last login at 2025-7-26 13:00:26, currently offline.
Solved 2 problems, RP: 10 (No. 9030)
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