INTERVIEW QUESTIONS ALGORITHM DETAILS

Question: How to find median of a BST?

Answer: Find the no. of elements on the left side.
If it is n-1 the root is the median.
If it is more than n-1, then it has already been found in the left subtree.
Else it should be in the right subtree.

Find the no. of elements on the left side.
If it is n-1 the root is the median.
If it is more than n-1, then it has already been found in the left subtree.
Else it should be in the right subtree.

Source: CoolInterview.com

Its better to count all the elements in the tree in one traversal and then use inorder traversal to print the n/2th element in second traversal. Source: CoolInterview.com

Its simply the ROOT of the tree, with a condition that the tree is Sorted and has equal number of nodes on both sides - left and right. Source: CoolInterview.com

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