Grokking the Coding Interview: Patterns for Coding Questions

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Level Averages in a Binary Tree (easy)

Problem Statement

Given a binary tree, populate an array to represent the averages of all of its levels.

Example 1:

Example 2:

Constraints:

The number of nodes in the tree is in the range [1, 10<sup>4</sup>].
-2<sup>31</sup> <= Node.val <= 2<sup>31</sup> - 1

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