Question: What is the primary data structure used in DFS?
Options:
Array
Stack
Queue
Linked List
Correct Answer: Stack
Solution:
DFS uses a stack (either explicitly or via recursion) to keep track of vertices.
What is the primary data structure used in DFS?
Practice Questions
Q1
What is the primary data structure used in DFS?
Array
Stack
Queue
Linked List
Questions & Step-by-Step Solutions
What is the primary data structure used in DFS?
Step 1: Understand that DFS stands for Depth-First Search, which is a way to explore or traverse a graph or tree.
Step 2: Know that in DFS, we need to keep track of which vertices (or nodes) we have visited.
Step 3: Learn that a stack is a data structure that works on a Last In, First Out (LIFO) principle, meaning the last item added is the first one to be removed.
Step 4: Realize that DFS uses a stack to remember the vertices we need to visit next.
Step 5: Understand that we can use a stack explicitly (by creating one) or implicitly (by using the call stack through recursion).
Step 6: Conclude that the primary data structure for DFS is a stack.
No concepts available.
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