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Dijkstra's Algorithm

This is a simple O(n^2) implementation of <a href="http://en.wikipedia.org/wiki/Dijkstra's_algorithm">Dijkstra's algorithm</a> for finding the shortest paths from a single source to all...

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Speeding Up Dijkstra's Algorithm

Demonstrates a way of speeding up the O(n<sup>2</sup>) version of Dijkstra's Algorithm by about 4x. Here, dist[][] is the adjacency matrix representing the graph and n is the number of...

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Ruby Graph + Dijkstra

Dijkstra implementation in ruby, the names of the nodes need not to be integers, works for non directed or directed graphs<code> class Graph # Constructor def initialize @g = {} # the graph //...

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Graph Databases features: graph algorithms and how to use them with DEX

There is large literature on graph algorithms studied in the theory of graphs that has been proven to give excellent results extracting information with graphs. In this article we’d like to share a...

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Dijkstra Shortest Path Algorithm

// description of your code here<code> #include<iostream.h> #include<conio.h> #include<stdlib.h> int adjmatrix[50][50],cost[50][50]; int flag[50],distance[50],predecessor[50];...

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Algorithm of the Week: Dijkstra Shortest Path in a Graph

Introduction We already know how we can find the shortest paths in a graph starting from a given vertex. Practically we modified breadth-first search in order to calculate the distances from s to all...

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Algorithm of the Week: Shortest Path with Djikstra

Tonight I decided my study time would be to sit down and implement Djikstra’s algorithm in Python to help me understand it. When coding up a solution to a problem like this I tend to try to not look...

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