Binary Tree Zigzag Level Order Traversal Problem

Binary Tree Zigzag Level Order Traversal Problem — ExecCode Medium DSA Practice

Solve the Binary Tree Zigzag Level Order Traversal problem on ExecCode. Free online medium DSA practice in Arrays - Basics. Write and run code in Java, C++, Python — no signup required to run.

Problem description

Binary Tree Zigzag Level Order Traversal. BFS with direction flip. For Binary Tree Zigzag Level Order Traversal, focus on the exact input variables, return only the requested value, and preserve the required time complexity for the intended pattern.

Examples

Input root = [3, 9, 20, null, null, 15, 7]; Output [[3], [20, 9], [15, 7]]

Constraints

0 ≤ nodes ≤ 10^4

Practice Binary Tree Zigzag Level Order Traversal free on ExecCode. Browse DSA problems, topic map, and placement guides.