in rational algebra, write relational expression to compute all paths of length 3 for any given directed graph G. Show the working of your RA expression on a real graph of 7 nodes and 7 edges (use your imagination to create the graph)

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Strongly Connected Components

 A directed graph in which a path exists between all its pairs of vertices is called a strongly connected graph. A portion of the strongly connected directed graph that contains a path to reach from each vertex to other vertices is called a strongly connected component (SCC).