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" because it greedily …

Apr 7, 2014 · I am trying to implement Dijkstra's algorithm in python using arrays. This is my implementation.

Variants of Dijkstra's Algorithm The key is there are 3 kinds of implementation of Dijkstra's algorithm, but all the answers under this question ignore the differences among these variants. Using a nested for …

Oct 31, 2012 · Can somebody tell me why Dijkstra's algorithm for single source shortest path assumes that the edges must be non-negative. I am talking about only edges not the negative weight cycles.

Aug 26, 2009 · Dijkstra's algorithm is definitely complete and optimal that you will always find the shortest path. However it tends to take longer since it is used mainly to detect multiple goal nodes.

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 and that led me to …

Jan 22, 2018 · I'm working on Dijkstra's algorithm, and I really need to find all the possible shortest paths, not just one. I'm using an adjacency matrix and I applied Dijkstra's algorithm, and I can find …

May 7, 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 negative cycles. Is that

Oct 9, 2012 · I was wondering what's the difference between uniform-cost search and Dijkstra's algorithm. They seem to be the same algorithm.

May 18, 2010 · 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 the smallest …