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Java: Implement DIJKSTRA\'s algorithm for Single Source Shortest Path Problem wi

ID: 3852792 • Letter: J

Question

 Java: Implement DIJKSTRA's algorithm for Single Source Shortest Path Problem with BINARY Heaps. The running time should be O(ElogV)  Your program should read data from file (see samples below) and output a single number = sum of lengths of the shortest paths from node 0 to each node.  INPUT FORMAT: The first line of each file below contains the number of vertices and the number of edges in the graph (in the format "n=XXXX m=XXXXX"). The rest of the file is organized as follows:  each vertex i appears on a line by itself, followed by a line for each neighbor j>i of i (containing j and the length of edge (i,j)). Each list of neighbors is ended by an empty line. Vertices i which do not have neighbors with an index greater than i are not represented.  NOTE: Vertices are indexed from 0 to n-1.  NOTE: each edge is mentioned only once with its smaller number endpoint   the length of the shortest path tree should be 625349.  Program should give output in less than 1 second. 
 SAMPLE INPUT:  
 https://grid.cs.gsu.edu/~cscazz/CS4520/1000.txt 

Explanation / Answer

Algorithm to Implement DIJKSTRA's algorithm is below:

Thank you.

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