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78 lines (74 loc) · 1.51 KB
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ordDoubll.c
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78 lines (74 loc) · 1.51 KB
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#include<stdlib.h>
#include<stdio.h>
struct node
{
int data;
struct node *rlink, *llink;
} *head=NULL, *ptr, *temp;
void ins()
{
temp=(struct node*)malloc(sizeof(struct node));
printf("Enter Data : ");
scanf("%d",&temp->data);
if (head == NULL)
{
temp->rlink=temp->llink=NULL;
head=temp;
}
else if (temp->data > head->data)
{
ptr=head;
while(ptr->rlink!=NULL && ptr->data < temp->data)
ptr=ptr->rlink;
if (ptr->data >temp->data)
{
temp->rlink=ptr;
temp->llink=ptr->llink;
ptr->llink->rlink=temp;
ptr->llink=temp;
}
else
{
temp->rlink=NULL;
temp->llink=ptr;
ptr->rlink=temp;
}
}
else
{
temp->rlink=head;
head->llink=temp;
temp->llink=NULL;
head=temp;
}
}
void display()
{
ptr=head;
if (ptr!=NULL)
{
while (ptr!=NULL)
{
printf("%d ", ptr->data);
ptr=ptr->rlink;
}
printf("\n");
}
else
printf("Empty\n");
}
void main()
{
int res;
while(1)
{
printf(" 1 - insert \n 2 - display \n 3 - exit \nEnter Response : ");
scanf("%d",&res);
switch(res)
{
case 1 : ins(); break;
case 2 : display(); break;
case 3 : exit(0);
}
}
}