Implementation_Of_List_using_Cprogramming

#include <Stdio.h>
#include <conio.h>
#include <stdlib.h>
#define size 100
char list[size],val;
FILE *fp;
int position=-1,select =0,pe,all,dpe;
void insert(){
printf("\n Enter the Element to insert \n");
fprintf(fp,"\n Enter the Element to insert \n");
scanf(" %c",&val);
position = position + 1;
list[position]=val;
}
void delete(){
    if(position == -1){
        fprintf(fp,"The list is empty \n");
    }
    else{
printf("Enter the positon of the element to Delete \n");
fprintf(fp,"Enter the positon of the element to Delete \n");
scanf("%d",&pe);
int i;
for ( i = pe-1 ;i<=position;i++)
{
list [i]=list[i+1];
}
position = position -1;
}}
void display(){
 printf("Press 1 to display all the list Items otherwise press any alphanumeric key\n");
 fprintf(fp,"Press 1 to display all the list Items otherwise press any alphanumeric key\n");
 scanf("%d",&all);
 if (all==1){
int i;
for ( i = 0;i<=position;i++){
printf("%c",list[i]);
fprintf(fp,"%c",list[i]);
}
}
else{
printf("Enter the postion of the item to display\n");
fprintf(fp,"Enter the postion of the item to display\n");
scanf(" %d",&dpe);
printf("%c",list[dpe-1]);
fprintf(fp,"%c",list[dpe-1]);
}
printf("\n");
fprintf(fp,"\n");
}
int main()
{
    fp = fopen("074BCT035_LAB2.txt","a");
while(1){
    printf("1.INSERT \n 2.DELETE \n 3.DISPLAY \n 4.EXIT \n");
    fprintf(fp,"1.INSERT \n 2.DELETE \n 3.DISPLAY \n 4.EXIT \n");
    scanf("%d",&select);
    switch(select){
    case 1:
    insert();
    break;
    case 2:
    delete();
    break;
    case 3:
    display();
    break;
    default:
    exit(0);
    }
    }
    return 0;
}