Insertion at given position in circular linked list by R4R Team

Example-
Linked list is:3->4->1->9
Insert: 8 at 3rd position
Linked list become: 3->4->8->1->9

program-

#include< stdio.h>
#include< conio.h>
#include< alloc.h>
struct node
{
int data;
struct node *next;
};
struct node *first;

void create()
{
struct node *ptr,*cpt;
char ch;
cpt=(struct node*)malloc(sizeof(struct node));
printf("Enter Number\n");
scanf("%d",&cpt->data);
first=cpt;
do
{
ptr=(struct node*)malloc(sizeof(struct node));
printf("Enter Number\n");
scanf("%d",&ptr->data);
cpt->next=ptr;
cpt=ptr;
printf("Continue(y/n)?n");
ch=getch();
}while(ch=='y');
cpt->next=first;
}

void traverse()
{
struct node *ptr=first;
printf("Linklist is :\n");
while(ptr->next!=first)
{
printf("%d ",ptr->data);
ptr=ptr->next;
}
printf("%d",ptr->data);
}

void insertion()
{
int pos,i=0;
struct node *ptr,*cpt=first;
ptr=(struct node*)malloc(sizeof(struct node));
printf("Enter Number to insert and positionn");
scanf("%d%d",&ptr->data,&pos);
for(i=0;i< pos-2;i++)
{
cpt=cpt->next;
}
ptr->next=cpt->next;
cpt->next=ptr;
}

void main()
{
clrscr();
create();
traverse();
insertion();
traverse();
getch();
}


output-

Enter Number
2
Enter Number
4
Continue(y/n)?
Enter Number
1
Continue(y/n) ?
Enter Number
9
Continue(y/n) ?
Enter Number
0
Continue(y/n) ?
Linklist is :
2 4 1 9 0
Enter Number to insert and position
10 3
Linklist is :
2 4 10 1 9 0

-In this program, we have a three function create(), traverse() and insertion
-create() function are used to create a Circular Linked List
-traverse() function are used to traverse the circular linked list.
-insertion() function are used to insert the data at given position in the linked list.




Leave a Comment:
Search
R4R Team
R4Rin Top Tutorials are Core Java,Hibernate ,Spring,Sturts.The content on R4R.in website is done by expert team not only with the help of books but along with the strong professional knowledge in all context like coding,designing, marketing,etc!