Lowest Common Ancestor of a Binary Search Tree

[soniadessai]

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Given a binary search tree (BST), find the lowest common ancestor (LCA) node of two given nodes in the BST.

According to the definition of LCA on Wikipedia: “The lowest common ancestor is defined between two nodes p and q as the lowest node in T that has both p and q as descendants (where we allow a node to be a descendant of itself).”

Example 1:

Input: root = [6,2,8,0,4,7,9,null,null,3,5], p = 2, q = 8 Output: 6 Explanation: The LCA of nodes 2 and 8 is 6.

Example 2:

Input: root = [6,2,8,0,4,7,9,null,null,3,5], p = 2, q = 4 Output: 2 Explanation: The LCA of nodes 2 and 4 is 2, since a node can be a descendant of itself according to the LCA definition.

Example 3:

Input: root = [2,1], p = 2, q = 1 Output: 2

[MOHIT-PANDEY215]

Hey @Sonia312 , Please assign this issue to me.

[Swetathakare]

Could you assign this issue to me ? Name :Sweta Thakare Roll no :UCE2022654 e.mail :[sweta.thakare@cumminscollege.in]

[Lavanyawaghulde]

@Sonia312 Could you assign this issue to me ? Name : Lavanya Waghulde Roll no :UCE2022362 e.mail : lavanya.waghulde@cumminscollege.in

[Lavanyawaghulde]

@Sonia312 I have submitted solution . Could you please check?