#include <iostream>
#include <cstdlib>
#include <string>    // for string
#include <ctime>     // for time functions
using namespace std;

// For example, 2024 = 12 * 168 + 8
// Therefore the value of the expression 2024 % 12 is 8 (the year of the dragon).
// And since n is 12, the value of the expression 2024 % n is also 8.

int main()
{
    string animal[] {
        "monkey",    // 0
        "rooster",   // 1
        "dog",       // 2
        "pig",       // 3
        "rat",       // 4
        "ox",        // 5
        "tiger",     // 6
        "hare",      // 7
        "dragon",    // 8
        "snake",     // 9
        "horse",     // 10
        "sheep"      // 11
    };

    int n {sizeof animal / sizeof animal[0]}; // number of elements in array

    // Get the current year
    time_t t {time(nullptr)};
    tm *p {localtime(&t)};
    int currentYear {p->tm_year + 1900};

    cout << "Please type a year: ";
    int year {0};
    cin >> year;

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

    if (year <= 0) {
        cerr << "Sorry, the year has to be a positive number.\n";
        return EXIT_FAILURE;
    }

    string verb;
    if (year < currentYear) {
        verb = "was";
    } else if (year == currentYear) {
        verb = "is";
    } else {
        verb = "will be";
    }

    cout << year << " " << verb << " the year of the " << animal[year % n] << ".\n";
    return EXIT_SUCCESS;
}