Problem
A 比赛（match）
B 配对（pair）
C 染色（color）
D 施肥（fertilize）

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0809

Status: Done
Rule: IOI
Problem: 4
Start at: 2024-8-9 9:00
End at: 2024-8-9 12:00
Duration: 3 hour(s)
Host: root
Partic.: 28