Solution: Binary Tree Zigzag Level Order Traversal
Explore the binary tree zigzag level order traversal technique using a deque to alternate directions at each level. Understand how to manage traversal order by switching between FIFO and LIFO approaches, and learn to implement this strategy efficiently, handling node processing and space-time tradeoffs.
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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 ...