What are the differences between depth-first search and breadth-first search?
Depth-first search (DFS) explores as far as possible along each branch before backtracking, while breadth-first search (BFS) explores all neighbors at the present depth prior to moving on to nodes at the next depth level.
Can you give me an example of when to use each algorithm?
Sure! Use DFS for scenarios like solving puzzles or mazes where you want to explore all possibilities. BFS is ideal for finding the shortest path in unweighted graphs, like in social networks.
What are the time complexities of both algorithms?
Both DFS and BFS have a time complexity of O(V + E), where V is the number of vertices and E is the number of edges in the graph.
Are there any specific data structures used for these algorithms?
Yes! DFS typically uses a stack (or recursion), while BFS uses a queue to keep track of the nodes to explore next.
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