- Dijkstra's Algorithm For Shortest. the task is determining the shortest path from a given node to any. for solving this problem is Dijkstra's algorithm.
- Dijkstra’s Shortest Path Algorithm is popular algorithm for finding shortest path between different nodes. The algorithm (Pseudo Code) is as follows.
Dijkstra's algorithm is an algorithm. Dijkstra thought about the shortest path problem when. there is a natural linear program for computing shortest. Dijkstra’s algorithm solves the single source shortest path problem on a weighted, directed graph only when all edge-weights are non-negative. Using Dijkstra's Algorithm for finding shortest path problem. Shortest Path Problem: Dijkstra's. /// Below are functions used in the program. Dijkstra's algorithm in C to find the shortest path in graphs. Source code, pseudo code, and sample output of the program.
Shortest Path Problem: Dijkstra's Algorithmusing System; using System. Collections. Generic; using System. Linq; using System. Text; using System. IO; namespace Console. Application. 4{class Program{public int n = 0; public int infinity = 9.
Array; private static int[] prev. Array; private static bool[] known. Array; public int source; /// /// ////////////////////////////////////////////////////////////// Below are functions used in the programpublic void print(int dist){{if (prev. Array[dist] != 0)print(prev. Array[dist]); Console. Write("- -- > "+dist ); }}//////////////////////////////////////////////////////////////public void read(){using (Stream.
Reader reader = new Stream. Reader("D: \\test.
Read. Line(); n = int. Parse(size); arr = new int[n + 1, n + 1]; for (int i = 1; i < = n; i++){line = reader. Read. Line(); for (int j = 1; j < = n; j++){char[] delimiters = new char[] { ',', '\n' }; pars = line.
Split(delimiters, String. Split. Options. Remove. Empty. Entries); arr[i, j] = int. Parse(pars[j - 1]); }}last = reader. Read. Line(); source = int. Parse(last); }}//////////////////////////////public void initialize(){dist.
Array = new int[n + 1]; prev. Array = new int[n + 1]; known. Array = new bool[n + 1]; for (int i = 1; i < = n; i++){known. Array[i] = false; prev.
Array[i] = 0; dist. Array[i] = 9. 99; dist. Array[source] = 0; }}/////////////////////////////////public void dijkstra(){int close. Array[jj] & & dist. Array[jj] != 9. 99)if (dist. Array[jj] < min){min = dist.
Array[jj]; close. Array[close. 1] = true; //////////////////////////////////for (int a = 1; a < = n; a++){if (arr[close. Array[a]){if (dist. Array[a] > arr[close.
Array[close. 1]){dist. Array[a] = arr[close.
Array[close. 1]; prev. Array[a] = close.
Main(string[] args){ int choice; char chr; // char c; string st; int destin; Program pg = new Program(); pg. Console. Clear(); Console. Write. Line("- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -"); Console. Write. Line("DIJKSTRA'S ALGORITHM FOR WEIGHTED SHORTEST PATH "); Console. Write. Line("The Source Vertex is: "+pg.
Console. Write. Line("- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "); Console. Write. Line("1. View Shortest Path From Source To A Specific Vertex"); Console. Write. Line("2. View Shortest Path From Source To All Vertices"); Console. Write. Line("- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "); Console. Write("Please enter your choice\n"); choice = int. Parse(Console. Read.
Line()); if (choice == 1){Console. Write. Line("- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "); Console. Write. Line("Enter the destination vertex between 1- 8: "); st = Console. Read. Line(); destin = int.
Parse(st); Console. Write. Line("The Shortest Path is: "); Console. Write. Line("- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "); pg. Console. Write. Line("- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "); Console. Write. Line("The Shortest Paths from Source to all vertices are: "); Console. Write. Line("- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "); for (int k = 1; k < = pg. Console. Write. Line(); }}Console.
Write. Line(); Console. Write. Line("- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "); Console. Write("Do you want to continue: Enter Y or N\n"); chr = char. Parse(Console. Read. Line()); }while (chr != 'n' & & chr != 'N'); }}}.