10 Questions
What is the defining property of a Binary Search Tree (BST)?
All nodes in the left subtree have values less than the root node, and all nodes in the right subtree have values greater than the root node.
What is the purpose of recovering a corrupted Binary Search Tree (BST)?
To restore the tree's structure by identifying and correcting two misplaced nodes that violate the BST property.
In the example BST provided, which node would be considered the root node?
10
Which of the following is not a characteristic of a standard Binary Search Tree (BST)?
Each node has a unique value.
What is the main approach mentioned for recovering a corrupted Binary Search Tree (BST)?
Inorder traversal and two-pointer approach.
What is the time complexity of the inorder traversal and two-pointer approach for recovering a BST?
O(n)
What is the purpose of the prevNode variable in the inorder method?
To keep track of the previous node during the inorder traversal
In the inorder method, how are the firstIncorrectNode and secondIncorrectNode variables determined?
By comparing the values of the current node and the previous node
What is the space complexity of the inorder traversal and two-pointer approach for recovering a BST?
O(h), where h is the height of the tree
In the recoverTree method, what operation is performed after identifying the two incorrectly placed nodes?
The values of the two nodes are swapped
Test your knowledge on recovering a Binary Search Tree (BST) by identifying and correcting misplaced nodes that violate the BST property. Learn how to swap values to restore the tree's sorted order.
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