T2-自学（study）
You cannot submit for this problem because the contest is ended. You can click "Open in Problem Set" to view this problem in normal mode.
大样例
20251009集训
- Status
- Done
- Rule
- OI
- Problem
- 5
- Start at
- 2025-10-9 19:00
- End at
- 2025-10-9 21:30
- Duration
- 2.5 hour(s)
- Host
-
SamuelXuch
- Partic.
- 39