1 votes 1 votes I Index of node in BST = no of nodes in left subtree +1 . Is this definition valid mehul vaidya asked Mar 30, 2018 mehul vaidya 165 views answer comment Share Follow See 1 comment See all 1 1 comment reply pankaj_vir commented Mar 30, 2018 reply Follow Share This can help you https://www.tutorialspoint.com/data_structure/ranked_binary_search_tree.asp 0 votes 0 votes Please log in or register to add a comment.