UID: 1101, Registered at 2025-7-14 16:27:46, last login at 2025-7-15 16:17:47, currently offline.
Solved 6 problems, RP: 16.6 (No. 369)
By signing up a 黑猫OJ universal account, you can submit code and join discussions in all online judging services provided by us.
Using your 黑猫OJ universal account
