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Directed Graphs Directed graph. G = (V, E) Edge (u, v) goes from node u to node v. Ex. Web graph -hyperlink points from one web page to another. （网络图— 阅读全文
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Bipartite Graphs Def. An undirected graph G = (V, E) is bipartiteif the nodes can be colored red or blue such that every edge has one red and one blue 阅读全文
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Connectivity s-t connectivity problem. Given two node s and t, is there a path between s and t? (s - t连接问题: 给定两个节点s和t，在s和t之间有路径吗?) s-t shortest path p 阅读全文