Check for Children Sum Property in a Binary Tree
Given a binary tree, write a function that returns true if the tree satisfies below property.
For every node, data value must be equal to sum of data values in left and right children. Consider data value as 0 for NULL children. Below tree is an example
Traverse the given binary tree. For each node check (recursively) if the node and both its children satisfy the Children Sum Property, if so then return true else return false.