Prims algorithm

Description

Prim's algorithm, also known as Jarník's algorithm, is a greedy algorithm used to find the minimum spanning tree (MST) of a weighted, undirected graph. A minimum spanning tree is a subset of the edges in a graph that connects all the vertices together with the minimum total weight of the edges, without forming a cycle. In simpler terms, it's like finding the cheapest way to connect all the cities in a network, with the condition that there are no unnecessary loops in the connections.
M.RAMYA DEVI HICET STAFF CSE
Quiz by M.RAMYA DEVI HICET STAFF CSE, updated 23 days ago
M.RAMYA DEVI HICET STAFF CSE
Created by M.RAMYA DEVI HICET STAFF CSE 23 days ago
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Resource summary

Question 1

Question
What is the primary purpose of Prim's algorithm?
Answer
  • To identify the most efficient way to connect a set of points with minimal cost.
  • To find the largest possible spanning tree within a graph.
  • To determine the shortest path between two points in a graph.
  • To analyze the complexity of a network by calculating its total weight.

Question 2

Question
Which data structures can be used to implement Prim's algorithm?
Answer
  • Hash tables and binary trees.
  • Adjacency lists and adjacency matrices.
  • Linked lists and arrays.
  • Stacks and queues.

Question 3

Question
What is the primary advantage of using Prim's algorithm for network design?
Answer
  • It guarantees the fastest possible connection between any two points in the network.
  • It allows for easy expansion and modification of the network without affecting its efficiency.
  • It ensures that the network is highly secure and resistant to disruptions.
  • It minimizes the total cost of connecting all points in the network.

Question 4

Question
What is the time complexity of Prim's algorithm?
Answer
  • O(V^2)
  • O(E^2)
  • O(V log E)
  • O(E log V)

Question 5

Question
How does Prim's algorithm ensure that there are no unnecessary loops in the connections?
Answer
  • It starts with a single vertex and gradually adds edges, ensuring that each new edge connects a vertex already in the tree to a vertex not yet in the tree.
  • It uses a greedy approach, always selecting the edge with the minimum weight, which automatically avoids creating loops.
  • It calculates the total weight of all possible paths and selects the one with the minimum weight, eliminating any loops.
  • It uses a data structure called an adjacency list, which prevents the formation of cycles.
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