Done IOI Start at: 2025-2-18 14:30 3 hour(s) Host:

root 44

IOI赛制，但是需要记得freopen

Status: Done
Rule: IOI
Problem: 4
Start at: 2025-2-18 14:30
End at: 2025-2-18 17:30
Duration: 3 hour(s)
Host: root
Partic.: 44