![]() ![]() It also has methods to addVertex and addEdge to a weighted graph. The following code shows the function WeightedGraph that creates a weighted graph by instantiating an adjacencyList. enqueue the vertex with the total distance from the start node Weighted Graph.update the previous object to contain that vertex.printQueue: To print the elements present in queue. isEmpty: To check whether an element is present in the queue or not. peek: To get the front element without removing it. dequeue: To remove an element from the front of the queue. update the distances object with a new lower distance To implement a queue data structure we need the following methods: enqueue : To add elements at end of the queue.If the distance is less than what is currently stored in our distances object.Calculate the distance to that vertex from the starting vertex.Otherwise, loop through each value in the adjacency list at that vertex.if that vertex is the same as the ending vertex – we are done!.dequeue a vertex from the priority queue.start looping as long as there is anything in the priority queue.Create another object called previous and set each key to be the every vertex in the adjacency list with a value of null.After setting a value in the distances object, add each vertex with a priority of infinity to the priority queue, except the starting vertex, which should have a priority of 0 because that’s where we begin.Create an object called distances and set each key to be the same vertex in the adjacency list with a value of infinity, except for the starting vertex, which should have a value of 0.The function should accept a starting and an ending vertex.Merge and Quick Sort algorithms Dijkstra’s Pseudocode Airline tickets – finding the cheapest route to your destination.Biology – used to model the spread of viruses among humans.Network routing -finds the open shortest paths for data. ![]() It is now famously known as the algorithm for finding the shortest path. He is amazed at how a 20-minute job of trying to figure out the shortest path from Rotterdam to Groningen, which generally translated from one city to another city, became the cornerstone of his fame. In his own words, during an interview, Edsger claims to have designed what is now famously known as Dijkstra’s algorithm over a cup of coffee with his young fiancee. In fact, most of his discoveries and algorithms are still commonly used today. By a substantial dimension, he helped advance the field of computer science from an “art” to an academic discipline. The algorithm was developed by Edsger Dijkstra, a Dutch programmer, physicist, essayist, and generally an all-around smarty-pants.
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