fn explode(tree: &mut [i32; 63], pair: usize)Expand description
Explode a specific pair identified by an index.
Storing the tree as an implicit structure has a nice benefit that finding the next left or right node is straightforward. We first move to the next left or right leaf node by adding or subtracting one to the index. If this node is empty then we move to the parent node until we find a leaf node.
The leaf node at index 31 has no possible nodes to the left and similarly the leaf node at index 62 has no possible nodes to the right.