File

#include<iostream>
#include <windows.h>
using namespace std;
int pil;
void pilih();
void hapusdata();
void buat_baru();
void tambah_depan();
void hapus_depan();
void tampil();
struct node
{
 char angka[13];
 string nama;
 string alamat;
	node *prev, *next;
};
node *baru, *head=NULL, *tail=NULL,*hapus,*bantu,*bantu2;
int main(){
do{
system("cls");
cout<<"SELAMAT DATANG DI E-BUKTEL "<<endl;
cout<<"=========================\n";
cout<<"1. Tamabah Kontak"<<endl;
cout<<"2. Hapus Kontak"<<endl;
cout<<"3. lihat kontak"<<endl;
cout<<"4. Keluar"<<endl;
cout<<"Pilihan : ";cin>>pil;
pilih();
}
while(pil!=4);
}
void pilih(){
	if(pil==1)
		tambah_depan();
	else if(pil==2)
		hapus_depan();
	else if(pil==3)
		tampil();
	else
		cout<<"selesai";
	}
void buat_baru(){
	baru =new(node);
 cin.ignore();
 cout<<"\nMasukkan Nama\t: ";
 getline(cin,baru->nama);
 cout<<"Masukkan Alamat\t: ";
 getline(cin,baru->alamat);
cout<<"Masukkan No HP	: ";cin>>baru->angka;
	baru->prev=NULL;
	baru->next=NULL;
	}

	void tambah_depan(){
	buat_baru();
	if(head==NULL){
	head=baru;
	tail=baru;
	}
	else{
	baru->next=head;
	head->prev=baru;
	head=baru;
	}
	cout<<endl;
	tampil();
	}

void hapus_depan() {
	if (head==NULL)
	cout<<"Kosong";
	else if(head->next==NULL){
		hapus=head;
		head=NULL;
		tail=NULL;
		delete hapus;
	}
	else {
		hapus=head;
		head=hapus->next;
		head->prev=NULL;
		delete hapus;
	}
	cout<<endl<<endl;
	tampil();
}


void tampil(){
	if (head==NULL)
	cout<<"Kosong\n";
	else {
	bantu=head;
	int no=0;
	while(bantu!=NULL){
	no++;
	cout<<"Kode		: ";cout<<" "<<no<<" "<<endl;
	cout<<"Nama		: ";cout<<bantu->nama<<endl;
	cout<<"alamat		: ";cout<<bantu->alamat<<endl;
	cout<<"No.Hp		: ";cout<<bantu->angka<<endl;

	cout<<"==================="<<endl;
	bantu=bantu->next;
	}
	}system("pause");
	}