Why doesn't Dijkstra's algorithm work for negative weight edges?
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 …
Negative weights using Dijkstra's Algorithm - Stack Overflow
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. …
finding the shortest path between source and destination in graph …
Jan 11, 2018 · I would like to write an algorithm, which finds the shortest path between two specific vertices - source and destination - in a directed and undirected graph. I know dijkstra's …
Dijkstra's algorithm in python - Stack Overflow
Apr 7, 2014 · I am trying to implement Dijkstra's algorithm in python using arrays. This is my implementation.
is dijkstra an A* algorithm? - Stack Overflow
May 23, 2025 · Dijkstra's algorithm and A* are both examples of "best-first" graph searches, where a node is expanded when it is currently the "best" open node, as measured by some …
Does dijkstras algorithm relax the edges of the shortest path in …
Oct 4, 2015 · He claims that Dijkstra's algorithm relaxes the edges of every shortest path in the graph in the order in which they appear on the path, and therefore the path-relaxation property …
algorithm - Bellman-Ford vs Dijkstra: Under what circumstances is ...
76 After a lot of Googling, I've found that most sources say that the Dijkstra algorithm is "more efficient" than the Bellman-Ford algorithm. But under what circumstances is the Bellman-Ford …
C++ - what data structures for Dijkstra's should I use?
Dec 12, 2018 · To implement Dijkstra's: You need a priority queue (aka sorted list) and a set (which could be implemented as a list). The priority queue that keeps the current boundary …
Performance improvement for Dijkstra algorithm using heaps in …
Mar 29, 2022 · Below is my implementation for Dijkstra's algorithm using heaps (for undirected graphs). This works just fine for reasonably sized graphs however I am not satisfied by my …
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 …