int main()
{
Sales_Data total;
if(read(cin,total))
{
Sales_Data trans;
while(read(cin,trans))
{
if(total.isbn()==trans.isbn())
{
total.combine(trans);
}
else
{
print(cout,total)<<endl;
total=trans;
}
}
print(cout,total)<<endl;
}else
{
cerr<<"NO Data?"<<endl;
}
return 0;
}
int main(int argc, const char * argv[]) {
Sales_Data total;
if(cin >> total.bookNo >> total.units_sold >> total.revenue){
Sales_Data trans;
while(cin >> trans.bookNo >> trans.units_sold >> trans.revenue){
if (total.isbn() == trans.isbn()) {
total.combine(trans);
}
else{
cout << total.bookNo <<" " << total.units_sold << " "<<total.revenue << endl;
total = trans;
}
cout << total.bookNo <<" " << total.units_sold << " "<<total.revenue << endl;
}
}
else{
