Done IOI Start at: 2025-3-8 8:30 3 hour(s) Host:

root 38

注意freopen

每一次模拟赛当做真题去做，去思考，去尽量拿分！

Status: Done
Rule: IOI
Problem: 4
Start at: 2025-3-8 8:30
End at: 2025-3-8 11:30
Duration: 3 hour(s)
Host: root
Partic.: 38