摘要：
Graph There are two standard ways to represent a graph G=(V,E)G=(V,E), where VV is a set of vertices and EE is a set of edges; Adjacency list represen 阅读全文
摘要：
Rooted Trees A graph G = (V, E) is a data structure where V is a finite set of vertices and E is a binary relation on Vrepresented by a set of edges. 阅读全文