predecessorarrays
Predecessor arrays, also known as predecessor maps or arrays, are a fundamental data structure used in graph algorithms, particularly in the context of shortest path and traversal algorithms such as Dijkstra's algorithm, Bellman-Ford algorithm, and breadth-first search (BFS). The predecessor array records the immediate predecessor of each vertex in a specific path or traversal, enabling the reconstruction of the shortest or specific paths from a source vertex to other vertices in a graph.
In a typical implementation, a predecessor array is an array or list where each element corresponds to
The primary use of predecessor arrays is in path reconstruction. After executing a shortest path algorithm,
Predecessor arrays are integral to graph analysis and are often coupled with distance arrays that store the