Podcast
Questions and Answers
What is the definition of tree traversal?
What is the definition of tree traversal?
- Visiting each node of the tree exactly once (correct)
- Arranging nodes in a specified order
- Skipping nodes in the tree
- Counting the number of nodes in the tree
How many tree traversals are there for a tree with n nodes?
How many tree traversals are there for a tree with n nodes?
- 2n
- n! (n factorial) (correct)
- n^2
- 2^n
In which traversal do you visit each level of the tree before moving on to the next level?
In which traversal do you visit each level of the tree before moving on to the next level?
- Bottom-up, left-right
- Top-down, left-right
- Height/Depth-first
- Breadth-first (correct)
What do most tree traversals provide?
What do most tree traversals provide?
In which traversal do you visit the nodes from bottom to top and from right to left?
In which traversal do you visit the nodes from bottom to top and from right to left?
What are the two general tree traversal classes?
What are the two general tree traversal classes?
What does Depth-first traversal prioritize?
What does Depth-first traversal prioritize?
In height-first traversal, which task is performed first at each node?
In height-first traversal, which task is performed first at each node?
Which traversal visits the nodes in the order: 1, 3, 4, 6, 7, 8, 10, 13, 14?
Which traversal visits the nodes in the order: 1, 3, 4, 6, 7, 8, 10, 13, 14?
What is the correct order for postorder tree traversal of the given tree?
What is the correct order for postorder tree traversal of the given tree?
What is the correct order for preorder tree traversal of the given tree?
What is the correct order for preorder tree traversal of the given tree?
In pre-order traversal, what is the order of operations?
In pre-order traversal, what is the order of operations?
In in-order traversal, when is the node visited in relation to its left and right children?
In in-order traversal, when is the node visited in relation to its left and right children?
In which traversal method does the visit operation happen before traversing the left and right children?
In which traversal method does the visit operation happen before traversing the left and right children?
What is the first step in searching for a target value in a BST?
What is the first step in searching for a target value in a BST?
In post-order traversal, what is the order of operations?
In post-order traversal, what is the order of operations?
What is the outcome if the subtree being searched is empty during a BST search?
What is the outcome if the subtree being searched is empty during a BST search?
What happens if the target value is greater than the element in the root node during a BST search?
What happens if the target value is greater than the element in the root node during a BST search?
What is the first step to insert a new element into a BST?
What is the first step to insert a new element into a BST?
What should be done if the search for the new element in a BST leads to a null link?
What should be done if the search for the new element in a BST leads to a null link?
What is the outcome of the search if the new element is already present in the BST?
What is the outcome of the search if the new element is already present in the BST?
In a BST, what determines whether the tree is well-balanced or ill-balanced?
In a BST, what determines whether the tree is well-balanced or ill-balanced?
If the elements 16, 19, 23, 28, 42 are inserted in ascending order into a BST, what is the likely outcome?
If the elements 16, 19, 23, 28, 42 are inserted in ascending order into a BST, what is the likely outcome?
What is the likely balance outcome if the elements 42, 28, 23, 19, 16 are inserted into a BST?
What is the likely balance outcome if the elements 42, 28, 23, 19, 16 are inserted into a BST?
What is the process for removing a leaf node ( a node with 0 children ) in a BST?
What is the process for removing a leaf node ( a node with 0 children ) in a BST?
What is the process for removing a node with one child in a BST?
What is the process for removing a node with one child in a BST?
When deleting node 8 in a BST, what is the next smaller (inorder predecessor) to replace 8?
When deleting node 8 in a BST, what is the next smaller (inorder predecessor) to replace 8?
When deleting node 8 in a BST, what is the next larger (inorder successor) to replace 8?
When deleting node 8 in a BST, what is the next larger (inorder successor) to replace 8?
When deleting a node with 2 children in a BST, how do you find the next smaller node to replace it?
When deleting a node with 2 children in a BST, how do you find the next smaller node to replace it?
What is the correct sequence of steps to find the next smaller value (inorder predecessor) when deleting a node in a BST?
What is the correct sequence of steps to find the next smaller value (inorder predecessor) when deleting a node in a BST?
What condition must be maintained when replacing a node with 2 children in a BST?
What condition must be maintained when replacing a node with 2 children in a BST?
What impact can deletion have on a balanced BST?
What impact can deletion have on a balanced BST?
What is the worst-case time complexity for deletion in an ill-balanced BST?
What is the worst-case time complexity for deletion in an ill-balanced BST?
What is the best-case time complexity for deletion in a balanced BST?
What is the best-case time complexity for deletion in a balanced BST?
What distinguishes a Heap from a Binary Search Tree (BST)?
What distinguishes a Heap from a Binary Search Tree (BST)?
What is the process for inserting a new node into a heap?
What is the process for inserting a new node into a heap?
What characterizes a Max Heap?
What characterizes a Max Heap?
In a max heap, when is a swap performed during insertion?
In a max heap, when is a swap performed during insertion?
What is the defining characteristic of a Min Heap?
What is the defining characteristic of a Min Heap?
What is the correct sequence of inserting the elements 8, 10, 3, 6, 7, 14, 1, 13, 4 into a min heap?
What is the correct sequence of inserting the elements 8, 10, 3, 6, 7, 14, 1, 13, 4 into a min heap?
What is the process for removing a node from a heap?
What is the process for removing a node from a heap?
What is the restriction when deleting a node from a heap?
What is the restriction when deleting a node from a heap?
What is the time complexity for any operation on a heap?
What is the time complexity for any operation on a heap?
What determines the swapping condition in a max heap during downheap?
What determines the swapping condition in a max heap during downheap?
Which applications benefit from fast access to the smallest or largest element?
Which applications benefit from fast access to the smallest or largest element?
What type of data structure is a priority queue?
What type of data structure is a priority queue?
What distinguishes a Heap from a Binary Search Tree (BST)?
What distinguishes a Heap from a Binary Search Tree (BST)?
What is the defining characteristic of a Min Heap?
What is the defining characteristic of a Min Heap?
In a max heap, when is a swap performed during insertion?
In a max heap, when is a swap performed during insertion?
During deletion of a max heap, what is the condition to swap the parent node with a child node?
During deletion of a max heap, what is the condition to swap the parent node with a child node?
When deleting from a min heap, what triggers a swap with the parent node?
When deleting from a min heap, what triggers a swap with the parent node?
In a max heap, what is the condition to swap the parent node with a child node if both children are greater?
In a max heap, what is the condition to swap the parent node with a child node if both children are greater?
What is the time complexity for any operation on a heap?
What is the time complexity for any operation on a heap?
Which type of heap is great for applications requiring fast access to the smallest element?
Which type of heap is great for applications requiring fast access to the smallest element?
What is the minimum height possible for a complete heap?
What is the minimum height possible for a complete heap?
What is a defining characteristic of a complete heap?
What is a defining characteristic of a complete heap?
What is the relationship between completeness and height in a heap?
What is the relationship between completeness and height in a heap?
What is the first step to build a max heap using the given data?
What is the first step to build a max heap using the given data?
What is the outcome of extracting 2 values from the max heap?
What is the outcome of extracting 2 values from the max heap?
What is the correct first step to repeat the process for a min heap?
What is the correct first step to repeat the process for a min heap?
