In BFS, the first node added to the queue is visited first, as BFS explores all neighbors at the present depth prior to moving on to nodes at the next depth level.
Questions & Step-by-step Solutions
1 item
Q
Q: In BFS, which node is visited first?
Solution: In BFS, the first node added to the queue is visited first, as BFS explores all neighbors at the present depth prior to moving on to nodes at the next depth level.
Steps: 7
Step 1: Start with a graph that has nodes (points) connected by edges (lines).
Step 2: Choose a starting node (the first node you want to visit).
Step 3: Add the starting node to a queue (a list where you can add and remove nodes).
Step 4: Visit the first node in the queue (this is the first node you added).
Step 5: Look at all the neighbors (connected nodes) of the visited node.
Step 6: Add all unvisited neighbors to the end of the queue.
Step 7: Repeat steps 4 to 6 until there are no more nodes in the queue.
