You are given the root of a binary tree. Your task is to return the average value of the nodes on each level in the form of an array.

Note: Only answers within $10^{-5}$ of the actual answer will be accepted.

Constraints:

• The number of nodes in the tree is in the range $[1, 10^4]$.

• $-2^{31} \leq$ Node.data $\leq 2^{31} - 1$

Let’s take a moment to make sure you’ve correctly understood the problem. The quiz below helps you check if you’re solving the correct problem:

We have a game for you to play. Rearrange the logical building blocks to develop a clearer understanding on how to solve this problem.

Implement your solution in the following coding playground.