Programmability of sequences
Data formats and Data operators make programmability easier with sequences. Data formats like xml and json have a language for specifying a search path. For example, json representation enables JMESPath (pronounced James Path) query where elements can be extracted and search can be specified via the search operator. These are primarily helpful in Application Programming Interfaces.
Data Operators like the standard query operators that include sorting operators, filtering operators, quantifier operators, projection operators, join operators, partitioning and grouping data operators, generation operators, equality operators, element operators, concatenation operators, and aggregation operators improve the data access and enable a variety of queries and data manipulation.
APIs and SDKs complete the programmability for consumption by applications. These include implementations specific to languages. The availability of SDK in the choice language of the programmer enables the applications to be written easily.
APIs and SDKs also make it easy for the application traffic to be identified, monitored and support troubleshooting with the help of apiKeys, request parameters, caller contexts, http proxy and such other techniques.
#codingexercise

Node GetPredecessor(Node root)
{
if (root == NULL) return root;
if (root.left )
{
Node current = root.left;
While (current && current.right)
Current = current.right;
Return current;
}
Node parent = GetParent(root);
While (parent && parent.left == root)
{
root = parent;
parent = GetParent(root, parent);
}
return parent;
}