2.DSA Validate Binary Search tree

Question : given BT and determine if it’s a BST.

in binary search tree all node in let is smaller that nodes on right

  • A binary search tree is a data structure where each node has at most two children (left and right).

  • Each node represents a value, and all values in the left subtree are smaller than the parent node.

  1. Properties:

    • Left child: Smaller than parent
    • Right child: Larger than parent
  2. Time complexity:

    • Search: O(log n)
    • Insert: O(log n)
    • Delete: O(log n) in average case

![[Pasted image 20250119145013.png]]

![[Pasted image 20250119145033.png]]