#COMPLETE BINARY TREE FULL#

While looking for its left or right child and if you find flag is true and you find a child then you can return false isn't it? As you already have come across a null value and you are not supposed to see a non value from that point. Now lets discuss on the solution, Since you are traversing in the BFS fashion, Let us define a flag variable which is set to true when ever the child is found to be a null. Well this approach will not cover some corner cases. so you pop the elements and each popped element should not have any children. So for this you try to add a element in the Que such that it indicates that the level has completed. A complete binary tree is a binary tree in which every level, except possibly the last, is completely filled, and all nodes should be as much close to left as possible.

every level of the tree has the maximum number of nodes possible. Click Here to View All the Exciting Offers Given a Binary Tree, write a function to check whether the given Binary Tree is Complete Binary Tree or not.

#COMPLETE BINARY TREE FULL#

A complete binary tree can be a full binary tree (when the deepest levels are completely full). A complete binary tree is a binary tree such that. The deepest level can have nodes that can have either one left child or can be completely full. If we know that when we traverse in Breadth fashion way and if we encounter a null value that has to be last element in the tree. A complete binary tree is a type of binary tree in which all the levels are completely filled (i.e, have two children), except the possibly the deepest level. Before we discuss on the solution lets say on the possible discussions.

In this problem we are given a binary tree and we need to find whether if it is a complete binary tree or not.

Complete binary tree