Traversal
Definition
Traversal refers to the process of visiting and accessing each element in a data structure, such as an array or a tree, in a specific order.
Analogy
Imagine you have a bookshelf with many books. To find a specific book, you need to traverse the entire shelf, checking each book until you find the one you're looking for.
Related terms
Preorder traversal: A type of traversal where the root node is visited first, followed by its left subtree and then its right subtree.
Inorder traversal: A type of traversal where the left subtree is visited first, followed by the root node and then the right subtree.
Postorder traversal: A type of traversal where the left subtree is visited first, followed by the right subtree and then finally the root node.
"Traversal" appears in:
Additional resources (1)
Practice Questions (6)
What happens if you access an index that is outside of the bounds of the array during traversal?
What are the types of traversal?
Which method can be used to add elements to an ArrayList during traversal?
If we delete an element at index i during traversal of an ArrayList, what must we do before inside the loop body, before the loop incrementation, to avoid skipping an element?
How should we avoid an infinite loop when adding elements to an ArrayList during traversal with an indexed for loop?
Which of the following kinds of traversals can we do for ArrayLists?
Resources
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