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Binary Tree Level Order Traversal

Explore the process of binary tree level order traversal using breadth-first search techniques. This lesson helps you understand how to visit nodes level by level, return node values in a specified format, handle edge cases like empty trees, and implement the solution in code.

Statement

Given the root of a binary tree, display the values of its nodes while performing a level order traversal. Return the node values for all levels in a string separated by the character : ...