Apasih

void beli_buku(list L, toko tishri[], list arr[], int m){
    int j; int k; int i;
    int status;
    status = 0;
    i = 0;
    while(i<m){
        j = (L).first;
        while((j != -1) && (status == 0)){
            if(strcmp((L).data[j].kontainer.judul,tishri[i].judul) == 0){
                addLast((L).data[j].kontainer.judul, (L).data[j].kontainer.harga, (L).data[j].kontainer.rating, &arr[i]);
                status = 1;
            }
            j = (L).data[j].next;
        }
                if(status == 1){
                    if(j == (L).first){
                        k = (L).data[j].next;
                        while(k != -1){
                            if((L).data[k].kontainer.rating == tishri[i].rating){
                                addLast((L).data[k].kontainer.judul, (L).data[k].kontainer.harga, (L).data[k].kontainer.rating, &arr[i]);
                                if(k != (L).data[j].next){
                                    int l = (L).data[k].prev;
                                    while(l != j){
                                        addLast((L).data[l].kontainer.judul, (L).data[l].kontainer.harga, (L).data[l].kontainer.rating, &arr[i]);

                                        l = (L).data[l].prev;
                                    }
                                }
                            }
                            k = (L).data[k].next;
                        }
                    }else{
                        k = (L).data[j].prev;
                        while(k != -1){
                            if((L).data[k].kontainer.rating == tishri[i].rating){
                                addLast((L).data[k].kontainer.judul, (L).data[k].kontainer.harga, (L).data[k].kontainer.rating, &arr[i]);
                                if(k != (L).data[j].prev){
                                    int l = (L).data[k].next;
                                    while(l != j){
                                        addAfter(l,(L).data[l].kontainer.judul, (L).data[l].kontainer.harga, (L).data[l].kontainer.rating, &arr[i]);
                                        l = (L).data[l].next;
                                    }
                                }
                            }
                            k = (L).data[k].prev;
                        }
                    }
                }
        status = 0;
        i++;
    }

}