Shortest Paths and Matrices
Explore the different techniques used to implement the shortest paths and matrices algorithm efficiently.
Inner loop of Fischer Meyer all-pairs shortest paths
There is a very close connection (first observed by Shimbel and later independently by Bellman) between computing shortest paths in a directed graph and computing powers of a square matrix. Compare the following algorithm for squaring an matrix with the inner loop of . (We’ve slightly modified the notation in the second algorithm to make the similarity clearer.)
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