workcpp_6_1

#include <iostream>
#include <windows.h>

class Date {
private:
    int day;
    int month;
    int year;

public:
    Date(int day, int month, int year) : day(day), month(month), year(year) {}

    int operator-(const Date& other) {
        // Преобразуем обе даты в количество дней
        int thisDays = day + month * 30 + year * 365;
        int otherDays = other.day + other.month * 30 + other.year * 365;

        return thisDays - otherDays;
    }

    Date operator+(int days) {
        // Добавляем указанное количество дней к текущей дате
        int totalDays = day + month * 30 + year * 365;
        totalDays += days;

        // Преобразуем общее количество дней обратно в дату
        int newYear = totalDays / 365;
        int newMonth = (totalDays % 365) / 30;
        int newDay = (totalDays % 365) % 30;

        return Date(newDay, newMonth, newYear);
    }
    int getDay() {
        return day;
    }
    int getMonth() {
        return month;
    }
    int getYear() {
        return year;
    }
};

int main() {
    SetConsoleCP(1251);
    SetConsoleOutputCP(1251);
    Date date1(1, 1, 2023);
    Date date2(31, 12, 2022);

    int diff = date1 - date2;
    std::cout << "Разница в днях: " << diff << std::endl;

    Date newDate = date1 + 10;
    std::cout << "Новая дата: " << newDate.getDay() << "." << newDate.getMonth() << "." << newDate.getYear() << std::endl;

    return 0;