UID: 19828, Registered at 2025-7-31 17:56:25, last login at 2025-7-31 17:56:25, currently offline.
Solved 3 problems, RP: 3 (No. 12076)
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