What is the key difference between depth-first and breadth-first traversal?

Mediumdsatraversal

Depth-first goes as deep as possible before backtracking; breadth-first visits all nodes at the current level firstCorrect answer
They are exactly the same algorithm with different names
Breadth-first can only be used on trees, never on graphs
Depth-first cannot be used on any tree structure

Show answer & explanation

Correct answer: A. Depth-first goes as deep as possible before backtracking; breadth-first visits all nodes at the current level first

Explanation

Depth-first traversal goes as deep as possible along a branch before backtracking, while breadth-first visits all nodes at the current depth before moving deeper.

Practise 3 questions on this topic

Take Trees & Graphs — Timed Test (3 questions) — scored instantly, explanation for every question, no login.

Start the test

What is the key difference between depth-first and breadth-first traversal?

Mediumdsatraversal

Depth-first goes as deep as possible before backtracking; breadth-first visits all nodes at the current level firstCorrect answer
They are exactly the same algorithm with different names
Breadth-first can only be used on trees, never on graphs
Depth-first cannot be used on any tree structure

Show answer & explanation

Correct answer: A. Depth-first goes as deep as possible before backtracking; breadth-first visits all nodes at the current level first

Explanation

Depth-first traversal goes as deep as possible along a branch before backtracking, while breadth-first visits all nodes at the current depth before moving deeper.

Practise 3 questions on this topic

Take Trees & Graphs — Timed Test (3 questions) — scored instantly, explanation for every question, no login.

Start the test

What is the key difference between depth-first and breadth-first traversal?

Related questions

What is the key difference between depth-first and breadth-first traversal?

Related questions