Problem
A 红与黑
B 等边三角形
C 正方形
D 平分石头
E 小猫爬山
F 守望者的逃离
G 分糖果（candy)

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9.27（dfs）

Status: Done
Rule: ACM/ICPC
Problem: 7
Start at: 2025-9-19 13:00
End at: 2025-10-6 5:00
Duration: 400 hour(s)
Host: lilyjiang
Partic.: 4