Python 3: Project-based Python, Algorithms, Data Structures - Recursively reverse a linked list

The video tutorial explains the delete method for binary search trees, focusing on maintaining tree order during deletion. It covers three scenarios: deleting leaf nodes, nodes with one child, and nodes with two children. For leaf nodes, the process is straightforward as they have no children. Nodes with one child require re-linking the parent to the child. The most complex case involves nodes with two children, where the node is replaced by the minimum value from the right subtree or the maximum from the left. The tutorial concludes with interview tips.

What is the primary challenge when deleting a node from a binary search tree?

• Finding the node to delete

• Ensuring all nodes have two children

• Maintaining the order of the tree

• Balancing the tree

When deleting a leaf node, what is the main action required?

• Rebalancing the tree

• Removing the link from its parent

• Finding a replacement node

• Copying the node's value to another node

In the scenario where a node with one child is deleted, what must be done to maintain the tree structure?

• Copy the node's value to its child

• Remove the node and its child

• Link the parent directly to the node's child

• Find a replacement node from the subtree

What is the first step in deleting a node with two children?

• Remove the node directly

• Find the maximum value in the left subtree

• Copy the node's value to its parent

• Find the minimum value in the right subtree

When replacing a node with two children using the minimum value from the right subtree, what is the next step after copying the value?

• Remove the original node

• Remove the node with the copied value

• Rebalance the tree

• Link the node's parent to its right child

Why is it important to find a node without a left child when selecting the minimum value from the right subtree?

• It ensures the node has no children

• It ensures the node is a leaf

• It indicates the node has the smallest value

• It simplifies the deletion process

What is a common interview expectation regarding the implementation of the delete method for binary search trees?

• Candidates must write the code from scratch

• Candidates should understand the process conceptually

• Candidates need to memorize the code

• Candidates should optimize the code for performance