Done ACM/ICPC Start at: 2025-10-19 13:15 5 hour(s) Host:

gggggggg 71

难度非递增，理性跟榜。

严禁作弊，抄袭。

记得赛后补题

祝各位取得好成绩

Status: Done
Rule: ACM/ICPC
Problem: 12
Start at: 2025-10-19 13:15
End at: 2025-10-19 18:15
Duration: 5 hour(s)
Host: gggggggg
Partic.: 71