Code:
#include iostream
#include cstdio
#include cstdlib
using namespace std;
/*
* Node Declaration
*/
struct node
{
int info;
struct node *next;
}*start;
/*
* Class Declaration
*/
class single_llist
{
public:
node* create_node(int);
void insert_begin();
void insert_pos();
void insert_last();
void delete_pos();
void sort();
void search();
void update();
void reverse();
void display();
single_llist()
{
start = NULL;
}
};
/*
* Main :contains menu
*/
main()
{
int choice, nodes, element, position, i;
single_llist sl;
start = NULL;
while (1)
{
cout<
cout<
cout<
cout<<"1.Insert Node at beginning"<
cout<<"2.Insert node at last"<
cout<<"3.Insert node at position"<
cout<<"4.Sort Link List"<
cout<<"5.Delete a Particular Node"<
cout<<"6.Update Node Value"<
cout<<"7.Search Element"<
cout<<"8.Display Linked List"<
cout<<"9.Reverse Linked List "<
cout<<"10.Exit "<
cout<<"Enter your choice : ";
cin>>choice;
switch(choice)
{
case 1:
cout<<"Inserting Node at Beginning: "<
sl.insert_begin();
cout<
break;
case 2:
cout<<"Inserting Node at Last: "<
sl.insert_last();
cout<
break;
case 3:
cout<<"Inserting Node at a given position:"<
sl.insert_pos();
cout<
break;
case 4:
cout<<"Sort Link List: "<
sl.sort();
cout<
break;
case 5:
cout<<"Delete a particular node: "<
sl.delete_pos();
break;
case 6:
cout<<"Update Node Value:"<
sl.update();
cout<
break;
case 7:
cout<<"Search element in Link List: "<
sl.search();
cout<
break;
case 8:
cout<<"Display elements of link list"<
sl.display();
cout<
break;
case 9:
cout<<"Reverse elements of Link List"<
sl.reverse();
cout<
break;
case 10:
cout<<"Exiting..."<
exit(1);
break;
default:
cout<<"Wrong choice"<
}
}
}
/*
* Creating Node
*/
node *single_llist::create_node(int value)
{
struct node *temp, *s;
temp = new(struct node);
if (temp == NULL)
{
cout<<"Memory not allocated "<
return 0;
}
else
{
temp->info = value;
temp->next = NULL;
return temp;
}
}
/*
* Inserting element in beginning
*/
void single_llist::insert_begin()
{
int value;
cout<<"Enter the value to be inserted: ";
cin>>value;
struct node *temp, *p;
temp = create_node(value);
if (start == NULL)
{
start = temp;
start->next = NULL;
}
else
{
p = start;
start = temp;
start->next = p;
}
cout<<"Element Inserted at beginning"<
}
/*
* Inserting Node at last
*/
void single_llist::insert_last()
{
int value;
cout<<"Enter the value to be inserted: ";
cin>>value;
struct node *temp, *s;
temp = create_node(value);
s = start;
while (s->next != NULL)
{
s = s->next;
}
temp->next = NULL;
s->next = temp;
cout<<"Element Inserted at last"<
}
/*
* Insertion of node at a given position
*/
void single_llist::insert_pos()
{
int value, pos, counter = 0;
cout<<"Enter the value to be inserted: ";
cin>>value;
struct node *temp, *s, *ptr;
temp = create_node(value);
cout<<"Enter the postion at which node to be inserted: ";
cin>>pos;
int i;
s = start;
while (s != NULL)
{
s = s->next;
counter++;
}
if (pos == 1)
{
if (start == NULL)
{
start = temp;
start->next = NULL;
}
else
{
ptr = start;
start = temp;
start->next = ptr;
}
}
else if (pos > 1 && pos <= counter)
{
s = start;
for (i = 1; i < pos; i++)
{
ptr = s;
s = s->next;
}
ptr->next = temp;
temp->next = s;
}
else
{
cout<<"Positon out of range"<
}
}
/*
* Sorting Link List
*/
void single_llist::sort()
{
struct node *ptr, *s;
int value;
if (start == NULL)
{
cout<<"The List is empty"<
return;
}
ptr = start;
while (ptr != NULL)
{
for (s = ptr->next;s !=NULL;s = s->next)
{
if (ptr->info > s->info)
{
value = ptr->info;
ptr->info = s->info;
s->info = value;
}
}
ptr = ptr->next;
}
}
/*
* Delete element at a given position
*/
void single_llist::delete_pos()
{
int pos, i, counter = 0;
if (start == NULL)
{
cout<<"List is empty"<
return;
}
cout<<"Enter the position of value to be deleted: ";
cin>>pos;
struct node *s, *ptr;
s = start;
if (pos == 1)
{
start = s->next;
}
else
{
while (s != NULL)
{
s = s->next;
counter++;
}
if (pos > 0 && pos <= counter)
{
s = start;
for (i = 1;i < pos;i++)
{
ptr = s;
s = s->next;
}
ptr->next = s->next;
}
else
{
cout<<"Position out of range"<
}
free(s);
cout<<"Element Deleted"<
}
}
/*
* Update a given Node
*/
void single_llist::update()
{
int value, pos, i;
if (start == NULL)
{
cout<<"List is empty"<
return;
}
cout<<"Enter the node postion to be updated: ";
cin>>pos;
cout<<"Enter the new value: ";
cin>>value;
struct node *s, *ptr;
s = start;
if (pos == 1)
{
start->info = value;
}
else
{
for (i = 0;i < pos - 1;i++)
{
if (s == NULL)
{
cout<<"There are less than "<
return;
}
s = s->next;
}
s->info = value;
}
cout<<"Node Updated"<
}
/*
* Searching an element
*/
void single_llist::search()
{
int value, pos = 0;
bool flag = false;
if (start == NULL)
{
cout<<"List is empty"<
return;
}
cout<<"Enter the value to be searched: ";
cin>>value;
struct node *s;
s = start;
while (s != NULL)
{
pos++;
if (s->info == value)
{
flag = true;
cout<<"Element "<
}
s = s->next;
}
if (!flag)
cout<<"Element "<
}
/*
* Reverse Link List
*/
void single_llist::reverse()
{
struct node *ptr1, *ptr2, *ptr3;
if (start == NULL)
{
cout<<"List is empty"<
return;
}
if (start->next == NULL)
{
return;
}
ptr1 = start;
ptr2 = ptr1->next;
ptr3 = ptr2->next;
ptr1->next = NULL;
ptr2->next = ptr1;
while (ptr3 != NULL)
{
ptr1 = ptr2;
ptr2 = ptr3;
ptr3 = ptr3->next;
ptr2->next = ptr1;
}
start = ptr2;
}
/*
* Display Elements of a link list
*/
void single_llist::display()
{
struct node *temp;
if (start == NULL)
{
cout<<"The List is Empty"<
return;
}
temp = start;
cout<<"Elements of list are: "<
while (temp != NULL)
{
cout<
temp = temp->next;
}
cout<<"NULL"<
}
Output:
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 8
Display elements of link list
The List is Empty.
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 5
Delete a particular node:
List is empty
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 6
Update Node Value:
List is empty
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 7
Search element in Link List:
List is empty
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 3
Inserting Node at a given position:
Enter the value to be inserted: 1010
Enter the postion at which node to be inserted: 5
Positon out of range
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 1
Inserting Node at Beginning:
Enter the value to be inserted: 100
Element Inserted at beginning
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 1
Inserting Node at Beginning:
Enter the value to be inserted: 200
Element Inserted at beginning
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 8
Display elements of link list
Elements of list are:
200->100->NULL
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 2
Inserting node at last:
Enter the value to be inserted: 50
Element Inserted at last
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 2
Inserting node at last:
Enter the value to be inserted: 150
Element Inserted at last
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 8
Display elements of link list
Elements of list are:
200->100->50->150->NULL
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 3
Inserting node at a given position:
Enter the value to be inserted: 1111
Enter the position at which node to be inserted: 4
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 8
Display elements of link list
Elements of list are:
200->100->50->1111->150->NULL
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 3
Inserting node at a given position:
Enter the value to be inserted: 1010
Enter the position at which node to be inserted: 100
Position out of range
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 8
Display elements of link list
Elements of list are:
200->100->50->1111->150->NULL
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 5
Delete a Particular node:
Enter the position of value to be deleted: 1
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 8
Display elements of link list
Elements of list are:
100->50->1111->150->NULL
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 6
Update Node Value:
Enter the node position to be updated: 1
Enter the new value: 1010
Node Updated
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 8
Display elements of link list
Elements of list are:
1010->50->1111->150->NULL
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 7
Search element in Link List:
Enter the value to be searched: 50
Element 50 is found at position 2
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 9
Reverse elements of Link List
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 8
Display elements of link list
Elements of list are:
150->1111->50->1010->NULL
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 4
Sort Link List:
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 8
Display elements of link list
Elements of list are:
50->150->1010->1111->NULL
---------------------------------
Operations on singly linked list
---------------------------------
1.Insert Node at beginning
2.Insert node at last
3.Insert node at position
4.Sort Link List
5.Delete a Particular Node
6.Update Node Value
7.Search Element
8.Display Linked List
9.Reverse Linked List
10.Exit
Enter your choice : 10
Exiting...
$
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