Using the following c++ header file near the bottom for context, fill in the "TODO" commented parts of the following function to finish the function implementation for the following insertVertex function: FUNCTION: // PURPOSE: Does IN order traversal from V recursively// PARAM: V is te pointer to the vertex to visit right nowvoid BST::InOrderTraversal(Vertex *V){ if (V != NULL) { // TODO traverse left sub-tree of V recursively // TODO display V's element, height and balance and do endl; // TODO traverse right sub-tree of V recursively }}--------------------------------------------------------------------------------------------- HEADER FILE: // tree element type is int for nowtypedef int el_t; // el_t is hidden from the client // definition of what a Vertex is - also hidden from the clientstruct Vertex{ Vertex *up; // points to the parent node Vertex *left; el_t elem; Vertex *right; int height; int balance;}; // this is set up to be inherited by another classclass BST {public: BST(); // intializes Root ~BST(); // destructor calls dtraverse to destroy the dynamic tree // PURPOSE: these will show the vertices in IN order // TO CALL: No parameter but provide a pointer to // the root vertex in calling INorderTraversal void Display(); void InOrderTraversal(Vertex*); // recursive // PURPOSE: these will search in PRE order - same as Depth First // TO CALL: provide the element to search for; provide a pointer to // the root vertex in calling PREorderSearch bool Search(el_t); bool PreOrderSearch(Vertex*, el_t); // recursive
Using the following c++ header file near the bottom for context, fill in the "TODO" commented parts of the following function to finish the function implementation for the following insertVertex function:
FUNCTION:
// PURPOSE: Does IN order traversal from V recursively
// PARAM: V is te pointer to the vertex to visit right now
void BST::InOrderTraversal(Vertex *V)
{
if (V != NULL)
{
// TODO traverse left sub-tree of V recursively
// TODO display V's element, height and balance and do endl;
// TODO traverse right sub-tree of V recursively
}
}---------------------------------------------------------------------------------------------
HEADER FILE:
// tree element type is int for now
typedef int el_t; // el_t is hidden from the client
// definition of what a Vertex is - also hidden from the client
struct Vertex
{
Vertex *up; // points to the parent node
Vertex *left;
el_t elem;
Vertex *right;
int height;
int balance;
};
// this is set up to be inherited by another class
class BST {
public:
BST(); // intializes Root
~BST(); // destructor calls dtraverse to destroy the dynamic tree
// PURPOSE: these will show the vertices in IN order
// TO CALL: No parameter but provide a pointer to
// the root vertex in calling INorderTraversal
void Display();
void InOrderTraversal(Vertex*); // recursive
// PURPOSE: these will search in PRE order - same as Depth First
// TO CALL: provide the element to search for; provide a pointer to
// the root vertex in calling PREorderSearch
bool Search(el_t);
bool PreOrderSearch(Vertex*, el_t); // recursive
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