Which of the following is true for a Binary Search Tree?
Question
Which of the following is true for a Binary Search Tree?
Solution
A Binary Search Tree (BST) is a tree in which all the nodes follow the below property:
- The left sub-tree of a node has a key less than its parent node's key.
- The right sub-tree of a node has a key greater than its parent node's key.
Thus, the key in each node must be greater than or equal to any key stored in the left sub-tree, and less than or equal to any key stored in the right sub-tree.
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