What does Dijkstra's algorithm guarantee when it is applied to a graph?Select one:a. It finds all possible paths from one vertex to another in the shortest time.b. It calculates the maximum capacity of flow from source to sink in a network.c. It finds the shortest path from a single source to all other vertices in a graph with non-negative weights.d. It identifies whether a graph is bipartite or not
Question
What does Dijkstra's algorithm guarantee when it is applied to a graph?Select one:a. It finds all possible paths from one vertex to another in the shortest time.b. It calculates the maximum capacity of flow from source to sink in a network.c. It finds the shortest path from a single source to all other vertices in a graph with non-negative weights.d. It identifies whether a graph is bipartite or not
Solution
The correct answer is c. Dijkstra's algorithm guarantees that it finds the shortest path from a single source to all other vertices in a graph with non-negative weights. This algorithm works by building up a set of nodes that have minimum distance from the source. It is efficient and used in various fields, including in network routing protocols.
Similar Questions
How does Dijkstra's algorithm find the shortest path in a graph?A) By brute force checking all possible pathsB) By maintaining a priority queue of nodes and their tentative distances from the start nodeC) By calculating the average distance between nodesD) By finding the maximum flow in a graph
What is a crucial requirement for Dijkstra’s algorithm (for finding shortest path) to work correctly?Select one:a. All edge weights in the graph must be equal.b. The graph must be fully connected.c. The graph must be a tree.d. The graph must not contain any negative edge weights.
• Analyze the time complexity of Dijkstra's algorithm and discuss how it changes with different graph representations.
Dijkstra's algorithm
Suppose you implemented Dijkstra's algorithm using a priority queue which supports each operations with the following worst-case performance, where n is the number of items in the priority queue:search: O(1)insert: O(loglog(n))delete: O(1)extractMin: O(loglog(n))decreaseKey: O(sqrt(n))isEmpty: O(1)You are given a connected, directed, weighted graph G with non-negative weights and a specified source. G has n nodes and m edges. What is the running time of Dijkstra's Algorithm on G using this new priority queue? (There are no other changes made to Dijkstra's Algorithm.)
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