Done XCPC Start at: 2025-7-10 14:00 3 hour(s) Host:

admin 25

不要作弊

22年睿抗真题：https://pintia.cn/market/item/1546381865379418112

购买时，取消勾选时光机可以使用免费的金币购买:

Status: Done
Rule: XCPC
Problem: 9
Start at: 2025-7-10 14:00
End at: 2025-7-10 17:00
Duration: 3 hour(s)
Host: admin
Partic.: 25