UID: 28117, Registered at 2026-2-3 16:47:36, last login at 2026-5-17 19:02:17, currently offline.
Solved 4 problems, RP: 17 (No. 17055)
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