C / C++ / MFC

#include <stdio.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();
 }