csnotes/370/notes/single-source.md
2019-04-15 20:06:49 -07:00

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# Single Source Shortest Path
# Bellman-ford Algorithm
Time: O(VE)
# Floyd-Warshall
Space: O(V^2)
That space is because we're using a matrix to store the paths, which of course is going to take up two dimensions
Main idea: Shortest path between any two nodes in a graph w/ V nodes _will_ go through at most V nodes
Iterative idea: Path's can visit i intermediary node. Does that many any path shorter?
Advantages: we can find negative cycles(Cycle where there is a negative edge)