Binary Search Tree from vector of parent pointers

Wajahat

2012 10 19

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I have a vector of parent pointers [ 0 1 1 2 2 3 3 5 5 ....] which is basically a binary tree. The index is the child and the corresponding value represents the index of its parent in the same vector.

e.g: in the above vector, if you count to index 5, the element is 2, which means that its parent lies at index 2. Again at index 2, the element is 1 which means the parent lies at index 1. At index 1 is the element is 0 which is the root node.

How can I create a binary search tree from this?

OR,

I am generating data in binary tree format in which I know the parent and corresponding children.

How can I store them in a binary search tree?

Index for children will always be greater than the parent, as shown in the vector above.

Best Regards

Wajahat