do { : : : : else { cout << "\nInvalid."; cout << "\nWould you like to calculate your bill again ? (y / n) : "; cin >> ch; cout << endl; } } while (ch == 'Y' || ch == 'y'); cout << "End of programm" <<endl;
do { : : : : else { cout << "\nInvalid."; cout << "\nWould you like to calculate your bill again ? (y / n) : "; cin >> ch; cout << endl; } } while (ch == 'Y' || ch == 'y'); cout << "End of programm" <<endl;