Linked List Error in C programming - c

Question

i had write a code in C, but when execute, it an error.
May i know how to combine a correct structure ? kindly advise, thank you
Output results:
Enter integers: 23 12 34 56 78 12
Traversing the list : 23->12->34->56>78->12
Minimum value : 12
Reversing the list: 12->78->56->34->12->23
The code:
#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
struct node
{
int data;
struct node *next;
} *head;
void insert_data(int value)
{
struct node *var,*temp;
temp=head;
var=(struct node *)malloc(sizeof(struct node));
var->data=value;
if(head==NULL)
{
head=var;
head->next=NULL;
}
else
{
while(temp->next!=NULL)
{
temp=temp->next;
}
var->next=NULL;
temp->next=var;
}
}
void reverse_list()
{
struct node *temp,*temp1,*var;
temp=head;
var=NULL;
while(temp!=NULL)
{
temp1=var;
var=temp;
temp=temp->next;
var->next=temp1;
}
head=var;
}
void display()
{
struct node *var;
var=head;
printf("\nlist of elments are \n");
while(var!=NULL)
{
printf(" %d ->",var->data);
var=var->next;
}
}
int main()
{
int i,value;
char ch='y';
head=NULL;
printf("\nEnter Integers: ");
scanf("%d",&value);
insert_data(value);
display();
getch();
return 0;
}

Answer 1

Can't understand the problem, but your code asks for only one element.
Make a loop for ability to enter more elements:
int main()
{
int i,value = 0;
char ch='y';
head=NULL;
printf("\nEnter Integers: ");
// here it is
while (value != -1) {
scanf("%d",&value);
insert_data(value);
display();
}
getch();
return 0;
}