Solving Average of Levels in Binary Tree in go. Please try yourself first to solve the problem and submit your implementation to LeetCode before looking into solution.

Problem Description

Given a non-empty binary tree, return the average value of the nodes on each level in the form of an array.

Example 1:

   / \
  9  20
    /  \
   15   7
Output: [3, 14.5, 11]
The average value of nodes on level 0 is 3,  on level 1 is 14.5, and on level 2 is 11. Hence return [3, 14.5, 11].


The range of node's value is in the range of 32-bit signed integer.

See the full details of the problem Average of Levels in Binary Tree at LeetCode

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