Solution: Binary Tree Zigzag Level Order Traversal
Understand how to implement binary tree zigzag level order traversal by alternating node processing directions with a deque. Explore managing traversal order with a reverse flag to efficiently navigate tree levels in left-to-right and right-to-left sequences. Master the algorithm and its time and space complexity for interview preparation.
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Statement
Given a binary tree, return its zigzag level order traversal. The zigzag level order traversal corresponds to traversing nodes from left to right for one level, right to left for the next level, and so on, reversing the direction after every level.
Constraints:
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The number of nodes in the tree is in the range to ...