UID: 4069, Registered at 2023-7-16 9:49:59, last login at 2023-10-22 10:21:55, currently offline.
Solved 7 problems, RP: 44.4 (No. 1637)
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