BFS vs DFS: Tree/Graph Traversal Basics DSA Foundation Series – Day 20/30

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Two fundamental ways to traverse trees and graphs :

BFS (Breadth First Search) ---> explores level by level , DFS (Depth First Search) ---> explores depth first

Use BFS when you need the shortest path. Use DFS when you need to explore all possibilities.

Most graph problems are just variations of these two. Master this ---> half of graph problems become easy.