Solution: Binary Tree Zigzag Level Order Traversal

Explore how to implement zigzag level order traversal on binary trees using a deque to alternate traversal directions per level. Understand the step-by-step process to manipulate deque operations for left-to-right and right-to-left order, ensuring efficient node processing with time and space complexity of O(n). Gain the skills to solve complex tree traversal problems in coding interviews confidently.