What are the different ways to represent graphs in programming?
There are several ways to represent graphs in programming, including adjacency lists, adjacency matrices, and edge lists. Each has its own advantages and use cases.
Can you explain adjacency lists in more detail?
Sure! An adjacency list represents a graph as an array of lists. Each index in the array corresponds to a vertex, and the list at that index contains all the vertices connected to it.
What about adjacency matrices?
An adjacency matrix is a 2D array where each cell at position (i, j) indicates whether there is an edge between vertex i and vertex j. It's useful for dense graphs.
Which representation is more efficient?
It depends on the graph's density. For sparse graphs, adjacency lists are more space-efficient, while adjacency matrices can be faster for dense graphs.
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