Write the C program to insert a node in circular singly list at the beginning.
- #include<stdio.h>
- #include<stdlib.h>
- void beg_insert(int);
- struct node
- {
- int data;
- struct node *next;
- };
- struct node *head;
- void main ()
- {
- int choice,item;
- do
- {
- printf("\nEnter the item which you want to insert?\n");
- scanf("%d",&item);
- beg_insert(item);
- printf("\nPress 0 to insert more ?\n");
- scanf("%d",&choice);
- }while(choice == 0);
- }
- void beg_insert(int item)
- {
- struct node *ptr = (struct node *)malloc(sizeof(struct node));
- struct node *temp;
- if(ptr == NULL)
- {
- printf("\nOVERFLOW");
- }
- else
- {
- ptr -> data = item;
- if(head == NULL)
- {
- head = ptr;
- ptr -> next = head;
- }
- else
- {
- temp = head;
- while(temp->next != head)
- temp = temp->next;
- ptr->next = head;
- temp -> next = ptr;
- head = ptr;
- }
- printf("\nNode Inserted\n");
- }
- }
