From BFS to Floyd-Warshall: Mastering Shortest Path Algorithms

Choosing the right shortest path algorithm hinges on understanding graph constraints—whether edges are weighted, negative, or if all-pairs solutions are needed. Rather than memorizing implementations, learning to identify graph properties and match them to algorithms like BFS, Dijkstra, Bellman-Ford, or Floyd-Warshall is the skill that matters in both interviews and real-world systems.