Algoritma Program Single Link List

/***************************************
Created     : Satria Mailian Gumelar
Algoritma   : Single Link List
Mata Kuliah : Struktur Data
Kampus      : Univesitas Pamulang
Website     : www.mailianblogger.com
***************************************/
#include <iostream>
#include <conio.h>
#include <iomanip>
#include <stdlib.h>
using namespace std;

void Inisialisasi();
void Input_SMG();
void Hapus_SMG();
void Cetak_SMG();
void Menu_SMG();

struct node
{
    int data;
    node* next;
};
    node* head;
    node* tail;
    node* curr;
    node* entry;
    node* del;

void Inisialisasi()
    {
        head = NULL;
        tail = NULL;
    }

void Input_SMG(int dt)
    {
        entry = (node* )malloc(sizeof(node));
        entry->data = dt;
        entry->next = NULL;
        if(head==NULL)
    {
        head = entry;
        tail = head;
    }
        else
    {
        tail->next = entry;
        tail = entry;
        }
    }
void Hapus_SMG()
    {
        int simpan;
        if(head==NULL)
    {
        cout<<"Linked List Kosong"<<endl;
    }
        else
    {
        simpan = head ->data;
        cout<<"Data diHapus -> "<<simpan<<endl;
        del = head;
        head = head->next;
        delete del;
    }
}

void Cetak_SMG()
    {
        curr = head;
        if(head == NULL)
        cout<<"Tidak Ada Data"<<endl;
        else
    {
        cout<<"Data Linked List : ";
        cout<<setw(6);
        while(curr!=NULL)
    {
        cout<<curr->data<<"->";
        curr = curr->next;
    }
        cout<<endl;
        }
    }

void Menu_SMG()
    {
        char pilih, ulang;
        int data;
        do
    {
        system("cls");
        cout<<"******************************************"<<endl;
        cout<<"Nama        : Satria Mailian Gumelar"<<endl;
        cout<<"NIK         : 171011400077"<<endl;
        cout<<"Dosen       : Bodi Santoso"<<endl;
        cout<<"Mata Kuliah : Struktur Data"<<endl;
        cout<<"Website     : www.mailianblogger.com"<<endl;
        cout<<"******************************************"<<endl;
        cout<<"\t     Single Link List"<<endl;
        cout<<"******************************************"<<endl;
        cout<<"\t       Pilihan Anda"<<endl;
        cout<<"\t1. Input Data\t2. Hapus Data"<<endl;
        cout<<"\t3. Cetak Data\t4. Exit"<<endl;
        cout<<"******************************************"<<endl;
        cout<<"Masukan Pilihan Anda : ";
        cin>>pilih;
        switch(pilih)
    {
        case '1' :
        cout<<"Masukkan Data : ";
        cin>>data;
        Input_SMG(data);
        break;

        case '2' :
        Hapus_SMG();
        break;

        case '3' :
        Cetak_SMG();
        break;

        case '4' :
        exit(0);
        break;
        default :
        cout<<"\t   Pilihan Anda Salah!"<<endl;
    }
        cout<<"\nLanjutkan ke Menu ?(y/n)";
        cin>>ulang;
    }
        while(ulang=='y' || ulang=='Y');
    }

int main()
    {
        Inisialisasi();
        Menu_SMG();
        return EXIT_SUCCESS;
}