Search⌘ K
AI Features
Home
Courses
Grokking the Coding Interview Patterns in C++

Solution: Binary Tree Zigzag Level Order Traversal

Understand how to implement zigzag level order traversal of a binary tree using a deque to alternate between left-to-right and right-to-left node visits each level. Learn the step-by-step approach, including managing traversal direction, adding child nodes accordingly, and analyzing time and space complexity.

We'll cover the following...

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:

  • The number of nodes in the tree is in the range 00 to 500500 ...