Need to write the following functions in table.cpp, and add function prototypes

ID: 2246513 • Letter: N

Question

Need to write the following functions in table.cpp, and add function prototypes for them to table.h and invoke the functions in main.cpp.

* int sumOfNodes(node * root)

Recursively calculate the sum of all the nodes in the tree.

* void copyLeaf(node * src, node *& dest)

Recursively copy all the leaves from the source tree to the destination tree. The destination tree must be a binary search
tree.

--------------------------------------------------------------------------------------------

main.cpp

#include "table.h"

#include <iostream>

using namespace std;

int main()
{
node * root = NULL;
build(root);
display(root);

/* PLACE YOUR FUNCTION CALL HERE */

display(root);
destroy(root);
return 0;
}

-----------------------------------------------------------------

table.h

#ifndef TABLE_H
#define TABLE_H
//table.h
#include <iostream>
#include <cstring>
#include <cctype>
using namespace std;

struct node
{
int data;
node * left;
node * right;;
};

void build(node * & root); //supplied
void display(node * root); //supplied
void destroy(node * & root); //supplied

/* ************** PLACE YOUR PROTOTYPE HERE ***************** */

#endif

------------------------------------------------------------

table.cpp

#include "table.h"

//Please put the impelementation of the required functions here

----------------------------------------------------------------------------------------

Please make sure the functions are done recursively, and are done in C++

Explanation / Answer

table.h

#include<cstdlib>

int sumOfNodes(node *);
void copyLeaf(node *, node **);

void insertion(int, node **);

node *makenode(int);

table.cpp

#include<cstdlib>

void insertion(int data, node **root)
{
   if(*root == NULL)
       *root = makenode(data);
   if((*root)->data == data)
       return;
   else if((*root)->data > data)
   {
       if((*root)->left != NULL)
           insertion(data, &(*root)->left);
       else
           (*root)->left = makenode(data);
   }
   else
   {
       if((*root)->right != NULL)
           insertion(data, &(*root)->right);
       else
           (*root)->right = makenode(data);
   }

}

void copyLeaf(node *src, node **dest)
{
   if(src == NULL)
       return;
   if(src->left != NULL)
       copyLeaf(src->left, dest);
   if(src->right != NULL)
       copyLeaf(src->right, dest);
   if(src->left == NULL && src->right == NULL)
       insertion(src->data, dest);
}

int sumOfNodes(node *root)
{
   if(root == NULL)
       return 0;
   int i = 0, j = 0;
   if(root->right != NULL)
       i = sumOfNodes(root->right);
   if(root->left != NULL)
       j = sumOfNodes(root->left);
   return (root->data + i + j);
}

node *makenode(int data)
{
   node *temp = NULL;
   temp = (node *)new(sizeof(node));
   if(temp == NULL)
   {
       cout<<" Dynamic memory allocation failed ";
       exit(-1);
   }
   temp->data = data, temp->right = temp->left = NULL;
   return temp;
}

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Need to write the following functions in table.cpp, and add function prototypes

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Need to write the following functions in table.cpp, and add function prototypes

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