Category: Algorithms

Dijkstra Algorithm in JavaScript, heap based fast implementation
Let’s pick up from where we left off and revisit the problem Dijkstra algorithm aims to solve. Input: directed graph G = (V, E) in adjacencylist representation, a source vertex s ∈ V, a length le ≥ 0 for each e ∈ E. Output: the true shortestpath distance to every vertex v from the source…

Dijkstra’s Algorithm in JavaScript, slow implementation
Dijkstra’s Algorithm is a handy tool for figuring out the shortest path in a connected directed graph where each connection has a nonnegative weight. If you’re familiar with Prim’s Minimum Spanning Tree, despite having different goals, you’ll observe that both employ a greedy strategy to carefully select the optimal/smallest distance path step by step. Note:…