Johnson algorithm

Johnson's algorithm is a method used in network routing to find the shortest paths between all pairs of nodes efficiently, especially when the network has multiple routes and potentially negative edge weights. It works by reassigning edge costs to eliminate negative weights and then applying shortest path calculations. This helps in quickly determining the most efficient routes between any two points in a complex network, making it valuable for optimizing logistics, communication, and transportation systems. Overall, it ensures the most cost-effective paths are identified accurately in networks with diverse link costs.