Edge list edge list: an unordered list of all edges in the graph advantages – easy to loop/iterate over all edges disadvantages – hard to tell if an edge exists from A to B – hard to tell how many edges a vertex touches (its degree) 1 2 1 5 1 6 2 7 2 3 3 4 5 7 5 6 5 4 7 4 1 2 3 4 5 6 7 12
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