Done XCPC Start at: 2025-1-14 14:00 3 hour(s) Host:

admin 40

请各位同学不要作弊，作弊的同学买不到回家的车票

补充题目：[黑匣子]https://www.luogu.com.cn/problem/P1801

请各位同学将补充题目作为正式题目对待并刷题

Status: Done
Rule: XCPC
Problem: 6
Start at: 2025-1-14 14:00
End at: 2025-1-14 17:00
Duration: 3 hour(s)
Host: admin
Partic.: 40