Implement different search algorithms : BST from scratch - Delete demo

The video tutorial explains the delete method for binary search trees, covering three scenarios: deleting leaf nodes, nodes with one child, and nodes with two children. It provides step-by-step instructions for each case, ensuring the tree's order is maintained. The tutorial also offers insights into technical interviews, emphasizing understanding the process over coding.

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

• Balancing the tree

• Finding the node to delete

• Maintaining the order of the tree

• Ensuring all nodes have two children

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

• Removing the link from its parent

• Finding a replacement node

• Copying the node's value to another node

• Rebalancing the tree

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

• Remove the node and its child

• Link the parent directly to the node's child

• Find a replacement node from the subtree

• Copy the node's value to its child

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

• Find the maximum value in the left subtree or minimum in the right subtree

• Remove the node directly

• Link the node's children directly

• Copy the node's value to its parent

When replacing a node with two children, what is the criterion for selecting a replacement from the right subtree?

• The node with no right child

• The node with the most children

• The node with the minimum value

• The node with the maximum value

After copying the replacement node's value in a two-child deletion scenario, what is the next step?

• Remove the original node

• Rebalance the tree

• Remove the replacement node

• Link the replacement node's children

Why is the code for deleting nodes in a binary search tree not very clean?

• It is written in a low-level language

• It needs extensive error handling

• It requires complex data structures

• It involves multiple scenarios to check for