Untitled

#include <iostream>
using namespace std;

class Date {
private:
    int day;
    int month;
    int year;
    static int count; 
public:
    Date() : day(0), month(0), year(0) {
        count++;
    }

    Date(int d, int m, int y) : day(d), month(m), year(y) {
        count++;
    }

 //   ~Date() {
 //       count--;
 //   }

    void setDay(int d) {
        day = d;
    }

    void setMonth(int m) {
        month = m;
    }

    void setYear(int y) {
        year = y;
    }

    void setDate(int d, int m, int y) {
        day = d;
        month = m;
        year = y;
    }

    int getDay() const {
        return day;
    }

    int getMonth() const {
        return month;
    }

    int getYear() const {
        return year;
    }

    void display() const {
        cout << day << "/" << month << "/" << year << endl;
    }

    static int getCount() {
        return count;
    }

    bool operator<(const Date& other) const {
        if (year != other.year)
            return year < other.year;
        else if (month != other.month)
            return month < other.month;
        else
            return day < other.day;
    }

    bool operator>(const Date& other) const {
        return other < *this;
    }

    bool operator==(const Date& other) const {
        return (day == other.day && month == other.month && year == other.year);
    }

    bool operator!=(const Date& other) const {
        return !(*this == other);
    }

    // Pre-increment operator
    Date& operator++() {
        day++;
	if (month==1 || month==3 || month==5 || month==7 || month==8 || month==10 || month==12){
	    if (day > 31) {
            day = 1;
            month++;
            if (month > 12) {
                month = 1;
                year++;
            }
	}
	}
	else if (month==2){
	    bool leap = false;
	    if(year % 4 == 0){
		if(year % 100 == 0){
		    if(year % 400 == 0){
			leap = true;
		    }
		}
		else
		    leap = true;
	    }
	    if(leap){
		if (day > 29) {
		    day = 1;
		    month = 3;
		}
	    }
	    else{
		if (day > 28){
		    day = 1;
		    month = 3;
		}
	    }
	}
	
	else {
        if (day > 30) {
            day = 1;
            month++;
        }
	}
        return *this;
    }

    // Post-increment operator
    Date operator++(int) {
        Date temp = *this;
        ++(*this);
        return temp;
    }

    // Pre-decrement operator
    Date& operator--() {
        day--;
	if (month==1 || month==5 || month==7 || month==8 || month==10 || month==12){
	    if (day < 1) {
            day = 30;
            month--;
            if (month < 1) {
                month = 12;
                year--;
            }
	}
	}
	else if (month==3){
	    bool leap = false;
	    if(year % 4 == 0){
		if(year % 100 == 0){
		    if(year % 400 == 0){
			leap = true;
		    }
		}
		else
		    leap = true;
	    }
	    if(leap){
		if (day < 1) {
		    day = 29;
		    month = 2;
		}
	    }
	    else{
		if (day < 1){
		    day = 28;
		    month = 2;
		}
	    }
	}
	
	else {
        if (day < 1) {
            day = 31;
            month--;
	    if (month < 1) {
                month = 12;
                year--;
            }
        }
	}

        return *this;
    }

    // Post-decrement operator
    Date operator--(int) {
        Date temp = *this;
        --(*this);
        return temp;
    }
};

int Date::count = 0;

int main() {
    Date date1; 
    Date date2(15, 8, 2021); 
    Date date3(5, 11, 2024);
    date1.setDate(1, 1, 2020);
    date1.display(); 

    ++date1; 
    date1.display(); 
    date1--; 
    date1.display(); 
    if (date1 < date2)
        cout << "date1 is earlier than date2" << endl;    
    if (date3 > date2)
        cout << "date3 is later than date2" << endl;

    Date date4(31, 7, 2004);
    Date date5(1, 3, 2020);
    date4.display();
    cout << "After incrementing\n";
    ++date4;
    date4.display();
    date5.display();
    cout << "After decrementing\n";
    --date5;
    date5.display();
    cout << "Total Date objects created: " << Date::getCount() << endl;

    return 0;
}