Homework Introduction

P3647是紫题，很有意思，思维比较难
P6419是紫题，但是不难，真的不难

Problem

Problem
P3478   [POI 2008] STA-Station
P2986   [USACO10MAR] Great Cow Gathering G
P1395   会议
P3047   [USACO12FEB] Nearby Cows G
P3647   [APIO2014] 连珠线
P6419   [COCI 2014/2015 #1] Kamp
Status
Done
Problem
6
Open Since
2025-11-26 11:30
Deadline
2026-1-3 23:59
Extension
24 hour(s)
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