Problem Statement The problem “Kth ancestor of a node in binary tree” states that you are given a binary tree and a node. Now we need to find the kth ancestor of this node. An ancestor of any node is the nodes that lie on the path from the root …
Problem Statement The problem asks to find “Inorder Successor of a node in Binary Tree”. An inorder successor of a node is a node in the binary tree that comes after the given node in the inorder traversal of the given binary tree. Example Inorder successor of 6 is 4 …
The problem “Check if a given array can represent Preorder Traversal of Binary Search Tree” states that you are given a preorder traversal sequence. Now consider this sequence and find out if this sequence can represent a binary search tree or not? The expected time complexity for the solution is …
The problem “Construct Binary Tree from given Parent Array representation” states that you are given an array. This input array represents a binary tree. Now you need to construct a binary tree on the basis of this input array. The array stores the index of parent node at each index. …
The problem “Given a binary tree, how do you remove all the half nodes?” states that you are given a binary tree. Now you need to remove the half nodes. A half node is defined as a node in the tree that has only a single child. Either it is …
The problem “Iterative Preorder Traversal” states that you are given a binary tree and now you need to find the preorder traversal of the tree. We are required to find the preorder traversal using iterative method and not the recursive approach. Example 5 7 9 6 1 4 3 …
Problem Statement The problem “Find distance between two nodes of a Binary Tree” states that you are given a binary tree and you are given two nodes. Now you need to find the minimum distance between these two nodes. Example // Tree is shown using the image above node 1 …
The problem “Write Code to Determine if Two Trees are Identical” states that you are given two binary trees. find out if they are identical or not? Here, identical tree means that both the binary trees have the same node value with the same arrangement of nodes. Example Both trees …
Problem Statement The problem “Boundary Traversal of binary tree” states that you are given a binary tree. Now you need to print the boundary view of a binary tree. Here boundary traversal means that all the nodes are shown as the boundary of the tree. The nodes are seen from …
Problem Statement The problem “Diagonal Traversal of Binary Tree” states that you are given a binary tree and now you need to find the diagonal view for the given tree. When we see a tree from the top-right direction. The nodes which are visible to us is the diagonal view …