Data Structures using C Part 32 - Shortest path Algorithm (Dijkstra's, Bellman–Ford, Floyd Warshall)

Shortest path Algorithms :
In graph theory, the shortest path problem is the problem of finding a path between two vertices (or nodes) in a graph such that the sum of the weights of its constituent edges is minimized.

Dijkstra's algorithm - solves the single-source shortest path problem.
Bellman–Ford algorithm - solves the single-source problem if edge weights may be negative.
Floyd–Warshall algorithm - solves all pairs shortest paths.

Dijkstra's algorithm :
We use Dijkstra's algorithm to find the shortest paths from the source to all other nodes in the graph.
For a given source node in the graph, the algorithm finds the shortest path between that node and every other.
The algorithm was proposed by computer scientist Edsger W. Dijkstra in 1956
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