Which data structure is used to implement a breadth-first search (BFS) algorithm
Practice Questions
Q1
Which data structure is used to implement a breadth-first search (BFS) algorithm?
Stack
Queue
Array
Linked List
Questions & Step-by-Step Solutions
Which data structure is used to implement a breadth-first search (BFS) algorithm?
Step 1: Understand what breadth-first search (BFS) is. It is an algorithm used to explore nodes in a graph or tree level by level.
Step 2: Identify how BFS works. It starts at a root node and explores all its neighbors before moving on to the next level of nodes.
Step 3: Recognize that to keep track of which nodes to explore next, we need a way to store these nodes temporarily.
Step 4: Learn that a Queue is a data structure that follows the First-In-First-Out (FIFO) principle, meaning the first element added is the first one to be removed.
Step 5: Conclude that a Queue is used in BFS to hold the nodes that need to be explored, allowing the algorithm to process nodes level by level.
