#include <iostream>
#include <cstdlib>
#include <stdexcept>   //for class runtime_error
using namespace std;

int main()
{
	int dividend {0};
	cout << "What is the dividend? ";
	cin >> dividend;

	int divisor {0};
	cout << "What is the divisor? ";
	cin >> divisor;

	try {
		if (divisor == 0) {
			runtime_error re {"Attempted division by zero."};
			throw re;
		}
		cout << "The quotient is " << dividend / divisor << ".\n";
	}

	catch (runtime_error& r) {
		cerr << r.what() << "\n";
		return EXIT_FAILURE;
	}

	return EXIT_SUCCESS;   //Arrive here if no exception was thrown.
}