Which data structure is used to implement BFS?

Which data structure is used to implement BFS?

Step 1: Understand what BFS (Breadth-First Search) is. It is a method for exploring nodes in a graph or tree.
Step 2: Know that BFS explores all neighbors of a node before moving to the next level of nodes.
Step 3: Realize that to keep track of which nodes to explore next, we need a way to store them.
Step 4: A queue is a data structure that works like a line, where you add items to the back and remove them from the front.
Step 5: In BFS, we use a queue to store the nodes that we need to explore next.
Step 6: When we visit a node, we add its neighbors to the back of the queue.
Step 7: We keep removing nodes from the front of the queue to explore them until there are no more nodes left.

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