Difference and advantages between dijkstra & A star
Oct 23, 2012 · It says A* is faster than using dijkstra and uses best-first-search to speed things up. A* is basically an informed variation of Dijkstra. A* is considered a "best first search" …
Use Dijkstra's to find a Minimum Spanning Tree? - Stack Overflow
Mar 14, 2017 · A: Dijkstra's Algorithm at every step greedily selects the next edge that is closest to some source vertex s. It does this until s is connected to every other vertex in the graph. …
Why does Dijkstra's algorithm work? - Stack Overflow
Aug 15, 2015 · I understand what Dijkstra's algorithm is, but I don't understand why it works. When selecting the next vertex to examine, why does Dijkstra's algorithm select the one with …
Dijkstra's Algorithm and Cycles - Stack Overflow
Apr 14, 2017 · It's stated in a book that "Dijkstra's algorithm only works with Directed Acyclic Graphs". It appears the algorithm works for graphs with cycles too as long as there are no …
algorithm - Dijkstra vs. Floyd-Warshall: Finding optimal route on …
Jul 11, 2012 · I am reading up on Dijkstra's algorithm and the Floyd-Warshall algorithm. I understand that Dijkstra's finds the optimal route from one node to all other nodes and Floyd …
Understanding Time complexity calculation for Dijkstra Algorithm
Jun 27, 2016 · As per my understanding, I have calculated time complexity of Dijkstra Algorithm as big-O notation using adjacency list given below. It didn't come out as it was supposed to …
Newest 'dijkstra' Questions - Stack Overflow
Apr 30, 2017 · Is Dijkstra's algorithm the most suitable for finding the shortest distance between two nodes, where all of the paths in the graph are equal to 1. If not what is a more time …
Is Dijkstra's algorithm deterministic? - Stack Overflow
Dijkstra's algorithm is a greedy algorithm, the main goal of a Dijsktra's algorithm is to find the shortest path between two nodes of a weighted graph. Wikipedia does a great job with …
Why is the time complexity of Dijkstra O ( (V + E) logV)
I was reading about worst case time complexity for the Dijkstra algorithm using binary heap (the graph being represented as adjacency list). According to Wikipedia and various stackoverflow …
data structures - Is the visited array really needed in Dijkstra's ...
Aug 29, 2022 · This isn't really Dijkstra's algorithm, as Dijkstra's involves each node being added and removed from the priority queue at most once. This version will reinsert nodes in the …