-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathDeleteAtAnyPositionLinkedList1.c
102 lines (91 loc) · 1.59 KB
/
DeleteAtAnyPositionLinkedList1.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
#include<stdio.h>
#include<stdlib.h>
void beginsert(int);
void deleteatpos();
void display();
struct node
{
int data;
struct node *next;
};
struct node *head, *temp;
void main()
{
int items[] = {10, 20, 30, 40, 50};
int i;
int numItems = sizeof(items) / sizeof(items[0]);
for (i = 0; i < numItems; i++)
{
beginsert(items[i]);
}
printf("\n\n Items in the list before deletion are: ");
display();
deleteatpos();
printf("\n\n Items in the list after deletion are: ");
display();
}
void beginsert(int item)
{
struct node *ptr = (struct node *)malloc(sizeof(struct node));
if (ptr == NULL)
{
printf("\n ****************OVERFLOW**************** \n");
}
else
{
ptr->data = item;
ptr->next = head;
head = ptr;
}
}
void begdelete()
{
struct node *ptr;
if (head == NULL)
{
printf("\n List is empty");
}
else
{
ptr = head;
head = ptr->next;
free(ptr);
printf("\n Node Deleted From The Beginning....");
}
}
void deleteatpos()
{
struct node *lod, *temp;
int ps, i;
printf("\n Enter the position you wants to delete:\n");
scanf("%d",&ps);
if (ps==1)
{
begdelete();
}
else
{
if(head == NULL)
{
printf("\nList Is Empty");
}
else
{
temp=head;
for(i=1;i<ps-1;i++)
{
temp=temp->next;
}
lod=temp->next;
temp->next=lod->next;
free(lod);
}
}
}
void display()
{
for (temp = head; temp != NULL; temp = temp->next)
{
printf("%d\t", temp->data);
}
}