UID: 6314, Registered at 2023-10-7 0:13:17, last login at 2023-10-11 2:10:17, currently offline.
Solved 2 problems, RP: 7.9 (No. 4405)
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