Category: Tree

Count all subtrees having same value of nodes in a binary tree

February 16, 2018

Given a binary tree, count all subtrees in it such that every node in the subtree have same value. Get great deals at Amazon

Find inorder successor for given key in a BST

February 4, 2018April 3, 2018

Given a BST, find inorder successor of a given key in it. If the given key do not lie in the BST, then return the next greater key (if any) present in the BST.

Find Maximum Difference Between a Node and its Descendants in a Binary Tree

Given a binary tree, find maximum difference between a node and its descendants in it.

Print Right View of a Binary Tree

Given a binary tree, write an efficient algorithm to print right view of given binary tree.

Remove nodes from BST that have keys outside the valid range

Given a BST and a valid range of keys, remove nodes from BST that have keys outside the valid range.

Print leaf to root path for every leaf node in a binary tree

Given a binary tree, write an iterative algorithm to print leaf to root path for every leaf node of binary tree. Use of Recursion is prohibited.

Find a pair with given sum in a BST

Given a binary search tree, find a pair with given sum present in it.

Find maximum width of given binary tree

Given a binary tree, write an efficient algorithm to compute maximum width of it.

Build Binary Tree from given Parent array

Given an array A which represents a binary tree such that the parent-child relationship is defined by (A[i], i) for every index i in the array A, build binary tree out of it. The value of root node will be i if -1 is present at index i in the array. It may be assumed …