Challenge: Create a Complete Binary Tree

Let’s create a complete binary tree.


Create a complete binary tree from values given as an array. A complete binary tree is such a tree in which every level except the last is filled.


An integer array.


A complete binary tree.

Sample input

arr := []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

Sample output

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