spanning incoming tree with a root
spanning outgoing tree with a root
spanning tree
最大树生成树
最小生成树
生成树T（V、E）
跨距树
Spanning树
Fibonacci堆
生成树
图
支撑树
扩充树。
分发树
spanning tree algorithm
spanning tree algorithmScalable Processor Architecture
spanning tree algorithmSystem Performance Evaluation Committee
spanning tree alogorithm
spanning tree of constraint graph
SPATIAL ORIENTATION TREE
spatial orientation tree structure
spatial oriented tree SOT structure