Java - Find shortest path between 2 points in a distance weighted map
Jul 5, 2013 · There's no reason not to use Dijkstra's algorithm here. It finds the shortest distance between a starting point and all destinations, then you simply select the destination you wanted from …
How to implement Dijkstra's Algorithm to find the shortest path in Java
Apr 29, 2015 · 1 You are overlooking an important part of the algorithm: when to stop. The pseudocode on Wikipedia is for the variation on Dijkstra's algorithm that computes the shortest path from the start …
java - Shortest path in a 2d array using Dijkstra's algorithm? - Stack ...
Oct 15, 2012 · 4 This is my first time implementing Dijkstra's algorithm. Okay so here I have a simple 2D 9 by 9 array: Starting point is 1 and we're trying to get to any green square. Red squares are walls or …
java - implementing dijkstra's algorithm using a priority queue - Stack ...
Apr 23, 2022 · So I'm trying to implement Dijkstra's algorithm. I understand Dijkstra's works, but I struggle to turn the concept into code. I have what I thought would be the correct code, I'm getting an …
java - Dijkstra's algorithm for longest path - Stack Overflow
May 1, 2017 · 3 You can't use Dijkstra's algorithm to find the longest simple path. This problem is NP-hard. In fact, there's no known polynomial solution to it. If the graph is relatively small, you can use …
Dijkstra's Algorithm using Priority Queue on Java
Nov 30, 2016 · I need to implement Dijkstra's Algorithm using priority queue in Java. Here is my code so far: public class Node { long idNum; String label; HashSet<Edge> outEdges; ...
Which datatype to use as queue in Dijkstra's algorithm?
26 I'm trying to implement Dijkstra's algorithm in Java (self-study). I use the pseudo-code provided by Wikipedia (link). Now near the end of the algorithm, I should decrease-key v in Q;. I guess i should …
java - File input for Dijkstra's algorithm - Stack Overflow
The description of the graph is terminated by a “flag”, the integer -1. A string follows this flag; this string is the name of the source vertex for the Dijkstra shortest-path algorithm. That is, you are to …
Implementing Dijkstra's algorithm in Java - Stack Overflow
Nov 6, 2018 · My issue with implementing Dijkstra's algorithm in Java is simply that I'm not sure how to prepare my data. I have a set of coordinates within an array, and a set of 1s and 0s in a matrix that …
Dijkstra's algorithm in Java for matrix with obstacles
May 23, 2014 · You know you should use Dijkstra's - okay, so where's the problem? It's a pretty straight-forward application of Dijkstra's and it should be pretty simple to convert any generic pseudo-code to …