telephonebook

#include<stdio.h>
#include<stdlib.h>
typedef struct Telephonebook
{
    char name;
    struct Telephonebook *next;
}telephonebook;
int main()
{
    telephonebook *start,*temp;
    start=(telephonebook*)malloc(sizeof(telephonebook));
    temp=start;
    temp->next=NULL;

        printf("1.Add\n");
            printf("2.Delete\n");
                printf("3.Search\n");
    printf("4.Display\n");
    while(1)
    {
        int query;
char name;
        scanf("%d",&query);
        switch(query){
        case 1:
            scanf("%c",&name);
            add(start,name);
            break;
                    case 2:
            scanf("%c",&name);
            delete(start,name);
            break;
                    case 3:
                        scanf("%c",&name);
            int status=search(start,name);
            if(status)
                printf("Element Found\n");
            else
            printf("Element Not Found\n");


            break;
                    case 4:






            printf("The list is ");
            display(start->next);
            break;




        }
    }




}
void add (telephonebook *pointer,char name)
{
    while(pointer->next!=NULL)
    {
        pointer=pointer->next;
    }
    pointer->next=(telephonebook*)malloc(sizeof(telephonebook));
    pointer=pointer->next;
        pointer->name=name;
        pointer->next=NULL;


}
void delete(telephonebook *pointer,char name)
{
        while(pointer->next!=NULL && (pointer->next)->name!=name)
        {
                   pointer=pointer->next;

        }
        if(pointer->next==NULL)
        {
            printf("Element %d is not present in the list\n",name);
            return;
        }
        telephonebook *temp;
        temp=pointer->next;
        pointer->next=temp->next;
        free(temp);

        return;

}
void search(telephonebook *pointer,char key)
{
    pointer=pointer->next;
    while(pointer!=NULL)
    {
        if(pointer->name== key)
        {
            return 1;
        }
        pointer=pointer->next;
    }

    return 0;
}
void display(telephonebook *pointer)
{
    if(pointer==NULL){
        return;
    }

    printf("%c",pointer->name);
    display(pointer->next);
}