linked_list_hapus_depan_belakang.cpp

void delfront()
{
    if (awal==NULL)
    {
        cout << "Kosong";
    }
    else if (awal->next==NULL)
    {
        hapus=awal;
        awal=NULL;
        akhir=NULL;
        delete hapus;
    }
    else
    {
        hapus=awal;
        awal=hapus->next;
        awal->prev=NULL;
        delete hapus;
        cout << "Data sudah dihapus." <<endl <<endl;
    }
}

void delback()
{
    if (awal==NULL)
    {
        cout << "Kosong";
    }
    else if (awal->next==NULL)
    {
        hapus=awal;
        awal=NULL;
        akhir=NULL;
        delete hapus;
    }
    else
    {
        hapus=akhir;
        akhir=hapus->prev;
        akhir->next=NULL;
        delete hapus;
        cout << "Data sudah dihapus." <<endl <<endl;
    }
}