Floyd Shortest Path Routing

find the shortest path from any node to any node in a network

Given a input adjacent matrix (AdjMax) that represents a weighted, directed graph. The function finds the shorest path from one vertex 'i' to another 'j'. The return values includes a matrix (S) that denotes the shortest distance between vertices 'i' and 'j', and a matrix (P) that denotes the next vertex 'k' on the path from vertex 'i' to vertex 'j'