Level Order Traversal of Binary Tree in C++
The level order traversal is a type of Breadth First Traversal (BFS) in which we traverse all the nodes in the current level and then move to the next level. It starts from the root level and goes to the last level. Consider the below example:
1
/ \
2 3
/ \ \
4 5 6
The level order traversal of the given tree will be: 1 2 3 4 5 6
Binary Tree Level Order Traversal in C++
Trees are the type of data structure that stores the data in the form of nodes having a parent or children or both connected through edges. It leads to a hierarchical tree-like structure that can be traversed in multiple ways such as —preorder, inorder, postorder, and level order. A binary tree is a tree data structure a node can only have 2 children at max.
In this article, we will learn about level order binary tree traversal in C++, how to implement it using a C++ program and analyze its time and space complexity.