#include <iostream>
#include <cstdlib>
#include <chrono>
#include <random>
#include <functional>
using namespace std;

int main()
{
	cout << "I am thinking of a number in the range 1 to 100 inclusive.\n"
		<< "Keep trying until you guess it.\n\n";

	unsigned seed = chrono::system_clock::now().time_since_epoch().count();
        default_random_engine engine {seed};
        uniform_int_distribution<int> distribution {1, 100};
        auto r {bind(distribution, engine)};

	const int correct {r()};
	int guessing {0};

	for (;;) {
		cout << "Go ahead: ";
		int guess {0};
		cin >> guess;
		++guessing;

		if (!cin) {
			cerr << "Sorry, that wasn't a number.\n";
			return EXIT_FAILURE;
		}

		if (guess == correct) {
			break;
		}

		if (guess < correct) {
			cout << "Too low.";
		} else { 
			cout << "Too high.";
		}

		cout << "  Try again.\n\n";

	}

	cout << "That's right, the number was " << correct << ".\n";
	if (guessing == 1) {
		cout << "You took " << guessing << " try. Nice job, mind reader.\n";
	} else {
		cout << "You took " << guessing << " tries. Good to know, you're not a wizard.\n";
	}	
	return EXIT_SUCCESS;
}