Code must be in C++!!! CODE MUST BE IN C++!!!!!!!! Answer with DList.C and DList
ID: 3797336 • Letter: C
Question
Code must be in C++!!!
CODE MUST BE IN C++!!!!!!!!
Answer with DList.C and DList.h
//Here is the main.C file
In this project, you are asked to design and implement a class for double link list to hold integers: The class should be called DList, you also need a class called Node that contains an int as the data Node needs the following data: int data //the data held by the node Node parent; //the parent of the Node Node* child; the child of the Node Node needs the following public functions Node (int) constructor to create a Node with the input int int GetData return the int held by the Node DList needs a head and tail, both should be pointers to Node, and initialized to NULL DList needs a default constructor (no parameter), a copy constructor (take const DList & as input) DList needs the following public functions: void Push Front (int a) //create a Node containing a //and add i to the front of the list void Push End (int a) //create a Node containing a and add it to the end of the list Node PopFront //popping out the first Node of the list, //if the list i s empty, return NULL Node* PopEnd //popping out the last Node of the list, //if the list is empty return NULL void Print ListForward //print every element from start to end //in one line separated by a space void Print ListReverse //print every element from end to start //in one line separated by a space 2 Files to turn in: You need to turn in four files in a targz file: makefile, main.C, DList.C, DList.h. Among them, you need to use the main. C provided from the class web site which you cannot modify at all. DList h declares the class DList and Node. You can make DList the friend of Node so it can access the private data of the Node.Explanation / Answer
#include <stdio.h>
#include <stdlib.h>
struct node
{
struct node *prev;
int n;
struct node *next;
}*h,*temp,*temp1,*temp2,*temp4;
void insert1();
void insert2();
void insert3();
void traversebeg();
void traverseend(int);
void sort();
void search();
void update();
void delete();
int count = 0;
void main()
{
int ch;
h = NULL;
temp = temp1 = NULL;
printf(" 1 - Insert at beginning");
printf(" 2 - Insert at end");
printf(" 3 - Insert at position i");
printf(" 4 - Delete at i");
printf(" 5 - Display from beginning");
printf(" 6 - Display from end");
printf(" 7 - Search for element");
printf(" 8 - Sort the list");
printf(" 9 - Update an element");
printf(" 10 - Exit");
while (1)
{
printf(" Enter choice : ");
scanf("%d", &ch);
switch (ch)
{
case 1:
insert1();
break;
case 2:
insert2();
break;
case 3:
insert3();
break;
case 4:
delete();
break;
case 5:
traversebeg();
break;
case 6:
temp2 = h;
if (temp2 == NULL)
printf(" Error : List empty to display ");
else
{
printf(" Reverse order of linked list is : ");
traverseend(temp2->n);
}
break;
case 7:
search();
break;
case 8:
sort();
break;
case 9:
update();
break;
case 10:
exit(0);
default:
printf(" Wrong choice menu");
}
}
}
void create()
{
int data;
temp =(struct node *)malloc(1*sizeof(struct node));
temp->prev = NULL;
temp->next = NULL;
printf(" Enter value to node : ");
scanf("%d", &data);
temp->n = data;
count++;
}
void insert1()
{
if (h == NULL)
{
create();
h = temp;
temp1 = h;
}
else
{
create();
temp->next = h;
h->prev = temp;
h = temp;
}
}
void insert2()
{
if (h == NULL)
{
create();
h = temp;
temp1 = h;
}
else
{
create();
temp1->next = temp;
temp->prev = temp1;
temp1 = temp;
}
}
void insert3()
{
int pos, i = 2;
printf(" Enter position to be inserted : ");
scanf("%d", &pos);
temp2 = h;
if ((pos < 1) || (pos >= count + 1))
{
printf(" Position out of range to insert");
return;
}
if ((h == NULL) && (pos != 1))
{
printf(" Empty list cannot insert other than 1st position");
return;
}
if ((h == NULL) && (pos == 1))
{
create();
h = temp;
temp1 = h;
return;
}
else
{
while (i < pos)
{
temp2 = temp2->next;
i++;
}
create();
temp->prev = temp2;
temp->next = temp2->next;
temp2->next->prev = temp;
temp2->next = temp;
}
}
void delete()
{
int i = 1, pos;
printf(" Enter position to be deleted : ");
scanf("%d", &pos);
temp2 = h;
if ((pos < 1) || (pos >= count + 1))
{
printf(" Error : Position out of range to delete");
return;
}
if (h == NULL)
{
printf(" Error : Empty list no elements to delete");
return;
}
else
{
while (i < pos)
{
temp2 = temp2->next;
i++;
}
if (i == 1)
{
if (temp2->next == NULL)
{
printf("Node deleted from list");
free(temp2);
temp2 = h = NULL;
return;
}
}
if (temp2->next == NULL)
{
temp2->prev->next = NULL;
free(temp2);
printf("Node deleted from list");
return;
}
temp2->next->prev = temp2->prev;
if (i != 1)
temp2->prev->next = temp2->next;
if (i == 1)
h = temp2->next;
printf(" Node deleted");
free(temp2);
}
count--;
}
void traversebeg()
{
temp2 = h;
if (temp2 == NULL)
{
printf("List empty to display ");
return;
}
printf(" Linked list elements from begining : ");
while (temp2->next != NULL)
{
printf(" %d ", temp2->n);
temp2 = temp2->next;
}
printf(" %d ", temp2->n);
}
void traverseend(int i)
{
if (temp2 != NULL)
{
i = temp2->n;
temp2 = temp2->next;
traverseend(i);
printf(" %d ", i);
}
}
void search()
{
int data, count = 0;
temp2 = h;
if (temp2 == NULL)
{
printf(" Error : List empty to search for data");
return;
}
printf(" Enter value to search : ");
scanf("%d", &data);
while (temp2 != NULL)
{
if (temp2->n == data)
{
printf(" Data found in %d position",count + 1);
return;
}
else
temp2 = temp2->next;
count++;
}
printf(" Error : %d not found in list", data);
}
void update()
{
int data, data1;
printf(" Enter node data to be updated : ");
scanf("%d", &data);
printf(" Enter new data : ");
scanf("%d", &data1);
temp2 = h;
if (temp2 == NULL)
{
printf(" Error : List empty no node to update");
return;
}
while (temp2 != NULL)
{
if (temp2->n == data)
{
temp2->n = data1;
traversebeg();
return;
}
else
temp2 = temp2->next;
}
printf(" Error : %d not found in list to update", data);
}
void sort()
{
int i, j, x;
temp2 = h;
temp4 = h;
if (temp2 == NULL)
{
printf(" List empty to sort");
return;
}
for (temp2 = h; temp2 != NULL; temp2 = temp2->next)
{
for (temp4 = temp2->next; temp4 != NULL; temp4 = temp4->next)
{
if (temp2->n > temp4->n)
{
x = temp2->n;
temp2->n = temp4->n;
temp4->n = x;
}
}
}
traversebeg();
}