stack linklist

#include<stdio.h>
#include<stdlib.h>

struct node
{
    int data;
    struct node *link;
};
struct node *top=NULL,*temp;
void Display();
void push(int vv);
void pop();
void count();
int main()
{
    int c,v;
    while(1)
    {
        printf("\n -----Menu-----\n");
         printf("\n press 1 for Push\n");
          printf("\n press 2 for pop\n");
           printf("\n press 3 for Display\n");
            printf("\n press 4 for count\n");
             printf ("\n press 5 for Exit\n");
              printf ("\n Enter Your Choice\n");
              scanf("%d",&c);
              switch(c)
              {
                case 1:printf ("\n choice=push\n");
                       printf("\n Enter New Vlue\n");
                       scanf("%d",&v);
                       push (v);
                       break;

                case 2: printf("\n choice=pop\n");
                if (top!=NULL)
                pop();
                else
                printf("\n No Data To Delete\n");
                break;


                case 3: printf("\n choice=Display\n");
                        if (top!=NULL)
                        Display();
                        else
                        printf("\n No Data to Display\n");
                        break;
                        default: printf("\n Wrong choice\n\n");
                        break;
                case 4:printf ("\n choice=Count\n");
                count();
                break;

                case 5: exit(0);
                break;
      }
   }
}
void push(int vv)
{
    temp=(struct node*)malloc(1*sizeof(struct node));
    temp->data=vv;
    temp->link=top;
    top= temp;
}
void Display()
{
    temp=top;
    while(temp!=NULL)
    {
        printf("\n %d", temp->data);
        temp=temp->link;
    }
}
void count()
{
    int i=0;
    temp=top;
    while(temp!=NULL)
    {
        i=i+1;
        temp=temp->link;
    }
    printf("\n Total node=%d\n",i);
}
void pop()
{
    temp=top;
    top=temp->link;
    printf("\n The Deleted value=%d\n",temp->data);
    free(temp);
}