What is Dijkstra’s Algorithm?
Dijkstra’s Algorithm is used for finding the shortest path between any two vertices of a graph. It uses a priority queue for finding the shortest path.
For more detail about Dijkstra’s Algorithm, you can refer to this article.
What is BFS Algorithm?
Breadth First Search (BFS) algorithm traverses a graph in a bread toward motion and uses a queue to remember to get the next vertex to start a search when a dead end occurs in any iteration.
For more detail about BFS Algorithm, you can refer to this article.
Difference between BFS and Dijkstra’s algorithms when looking for the shortest path:
| S.No. | Dijkstra’s Algorithm |
BFS Algorithm |
|---|---|---|
|
1. |
It is generally used for weighted graphs. |
It is used for unweighted graphs. |
|
2. |
In each step, visit the node with the lowest weight. |
Visit nodes level by level based on the closest to the source. |
|
3. |
It uses Priority Queue. |
It uses Simple Queue. |
|
4. |
The time complexity for this Algorithm is O(V + ElogV). |
The time complexity for this Algorithm for finding the |
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