Dijikstra's Algorithm | Greedy Technique | Lec 44 | Design & Analysis of Algorithm

Dijkstra's Algorithm
Greedy Method to find the Single- Source Shortest Path Problem
Best known Algorithm to find Shortest Path in Graph Problems
Applicable to both directed & Undirected graphs with Non-Negative weights only
Single-source Shortest-paths Problem
For a given vertex called the source in a weighted connected graph, find shortest paths to all its other vertices

Dijkstra's Algortihm Design Steps
Find the shortest path from source to vertex nearest to it
Then find the shortest path from source to the next nearest vertex
Continue this process for i-1 other vertices nearest to the source
Form a subtree with these vertices, source and the edges of the shortest path

This video explains
Dijkstra's Algorithm Introduction
Dijkstra's Algotihm Design Steps
Dijkstra's Algorithm Logic

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