Working Of BFS Python Program | Graph Data Structure

The BFS (Breadth-First Search) algorithm explores a graph level by level, starting from a given node. It uses a queue to manage nodes to be visited and a set to keep track of visited nodes. The algorithm processes the starting node, then its adjacent nodes, adding them to the queue if they haven’t been visited yet. It continues this process until all reachable nodes are visited. BFS is often used for tasks like finding the shortest path in an unweighted graph or checking if a graph is connected.