Usaco Training Section 6.4 Electric Fences
Electric Fences 電網 農夫約翰已經決定建造電網.他已經把他的農田圍成一些奇怪的形狀,現在必須找出安放電源的最 佳位置. 對於段電網都必須從電源拉出一條電線.電線可以穿過其他電網或者跨過其他電線.電線能夠以任 意角度鋪設,從電源連接到一段電網的任意一點上（也就是,這段電網的端點上或者在其之間的任意 一點上）.這裏所說的「一段電網」指的是呈一條線段狀的電網,並不是連在一起的幾段電網.若
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相關文章
- 1. USACO Section 5.2 Electric Fences - 有意思的枚舉+計算幾何
- 2. Usaco Training Section 6.2Calf Flac
- 3. Usaco Training Section 5.4 Telecowmunication
- 4. Usaco Training Section 6.2Packing Rectangles
- 5. Usaco Training Section 6.2Shaping Regions
- 6. USACO Section 3.4 Electric Fence - Pick定理
- 7. USACO Section 3.3 Riding The Fences - 歐拉回路
- 8. Usaco Training Section 6.1 Cow XOR
- 9. Usaco Training Section 5.3 Window Area
- 10. Usaco Training Section 6.5 All Latin Squares