UID: 2713, Registered at 2023-4-20 0:02:56, last login at 2023-5-8 16:42:22, currently offline.
Solved 2 problems, RP: 17.8 (No. 2873)
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