c code for mth linked list.
write a c code to print mth linked list.
Write a program to print the mth node from the last of a linked list of n nodes.
Code
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
struct node
{
int data;
struct node *next;
};
int count = 0;
void display(struct node *r)
{
printf("elements of list are : ");
while (r)
{
printf("%d ---> ", r->data);
r = r->next;
count++;
}
printf("NULL\n");
}
void from_last(struct node *r, int m)
{
if (m > count)
{
printf("INVALID POS");
}
else
{
struct node *t = r;
int i = count - m;
int j = 0;
while (t)
{
if (j == i)
{
printf("%d", r->data);
exit(0);
}
r = r->next;
j++;
}
}
}
struct node *create(struct node *head)
{
struct node *t, *p;
int n;
if (head == NULL)
{
t = (struct node *)malloc(sizeof(struct node));
printf("enter the node: \n");
scanf("%d", &t->data);
t->next = NULL;
head = t;
}
if (head != NULL)
{
do
{
t = (struct node *)malloc(sizeof(struct node));
printf("enter the node: \n");
scanf("%d", &t->data);
t->next = NULL;
p = head;
while (p->next != NULL)
{
p = p->next;
}
p->next = t;
printf("do you want to add more node press 1 for yes, 0 for no. ");
scanf("%d", &n);
} while (n);
}
return head;
}
int main()
{
struct node *head = NULL, *p;
int m;
head = create(head);
printf("enter the value of m : ");
scanf("\n%d", &m);
display(head);
from_last(head, m);
return 0;
}