program in c to delete the element from linked list of last position element

W.A.P to delete the element from linked list of last position element.

#include<stdio.h>

#include<conio.h>

#include<alloc.h>

#define NULL 0

struct node

{

int data;

struct node *link;

}*start,*temp,*pre;

void display();

void main()

{

int i,q,x;

char ch;

clrscr();

start=NULL;

for(i=0;i<=1;i++)

{

if(start==NULL)

{

temp=(struct node*)malloc(sizeof(struct node));

printf("\nEnter value for node: -");

scanf("%d",&temp->data);

start=temp;

temp->link=NULL;

}

else

{

while(1)

{

printf("\nDo you want create one more node(Y/N):- ");

fflush(stdin);

scanf("%c",&ch);

if(ch=='y' || ch=='Y')

{

temp->link=(struct node *)malloc(sizeof(struct node));

temp=temp->link;

printf("\nEnter value for node: -");

scanf("%d",&temp->data);

}

else

{

temp->link=NULL;

break;

}

}

}

}

printf("\n\n\nThe value of nodes are before delete :\n");

display();

//For delete last node

temp=start;

while(temp->link!=NULL)

{

pre=temp;

temp=temp->link;

}

pre->link=NULL;

free(temp);

printf("\n\nAfter deleting  last node the new nodes are :\n");

display();

getch();

}

void display()

{

temp=start;

while(temp!=NULL)

{

printf("%4d",temp->data);

temp=temp->link;

}

}

output:

Enter value for node: -45

Do you want create one more node(Y/N):- y

Enter value for node: -12

Do you want create one more node(Y/N):- y

Enter value for node: -10

Do you want create one more node(Y/N):- y

Enter value for node: -85

Do you want create one more node(Y/N):- n

The value of nodes are before delete :

  45  12  10  85

After deleting  last node the new nodes are :

  45  12  10