UID: 40001, Registered at 2026-5-10 10:30:39, last login at 2026-7-6 20:59:30, currently offline.
Solved 7 problems, RP: 36 (No. 10520)
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