wage calc

#include <iostream>;
#include <cmath>;

using namespace std;
int main()
{
	std::basic_istream<char>;
	std::char_traits<char>;

	double  hours{}, wage{}, wage15{}, wage2{}, holiday2{}, bday{}, totalwage{}, holiday{}, birthdaywagey{}, birthdaywage{}, totalholiday{}, endtotal{}, endtotalwage{}, y{}, n{}; \
		double overtime{}, overtime2{};
	char op{};

	cout << " How many hours did you work this week? ";
	cin >> hours;
	overtime = (hours > 40 < 60);

	overtime2 = (hours > 60 < 80);

	cout << "\n What is your hourly wage? ";
	cin >> wage;
	if (hours > 40 < 60) {
		wage15 = wage * 1.5;
	}
	else if (hours > 60 < 80) {
		wage2 = wage * 2;
	}





	cout << "\n Were any of the hours holiday hours? If so, how many? ";
	cin >> totalholiday;
	holiday = overtime - totalholiday;
	holiday2 = holiday * (wage * wage);


	cout << "\n Was it your birthday this week? [y/n] ";
	cin >> y;
	cin >> n;
	if (cin >> y) {
		birthdaywagey = (wage * 0.7);
	}
	if (cin >> n) {
		birthdaywage = 0;
	}




	totalwage = (hours * wage) + (overtime * wage15) + (holiday2);
	endtotalwage = totalwage + birthdaywagey;

	cout << "\n You earned: " << endtotalwage << endl;




	system("pause");
	return 0;

}