#include <iostream>
#include <cstdlib>
using namespace std;

class date {
public:
	int year;
	int month;
	int day;

	void print() const;
	void next(int n);
	void next();
	void prev();
	void prev(int n);
};

// Date lengths per month (no leap year handling)
const int date_length[] {
	0,  // Placeholder for index 0
	31, // January
	28, // February
	31, // March
	30, // April
	31, // May
	30, // June
	31, // July
	31, // August
	30, // September
	31, // October
	30, // November
	31  // December
};

void date::print() const {
	cout << month << "/" << day << "/" << year;
}

void date::next(int n) {
	for (int i = 0; i < n; ++i) {
		next();
	}
}

void date::next() {
	if (day < date_length[month]) {
		++day;
	} else {
		day = 1;
		if (month < 12) {
			++month;
		} else {
			month = 1;
			++year;
		}
	}
}

void date::prev(int n) {
    for (int i = 0; i < n; ++i) {
        prev();
    }
}

void date::prev() {
	if (day > 1) {
		--day;
	} else {
		if (month > 1) {
			--month;
		} else {
			month = 12;
			--year;
		}
		day = date_length[month];
	}
}

int main() {
	date d {2025, 3, 1};  // March 1, 2025

	cout << "Original date: ";
	d.print();
	cout << endl;

	d.prev();  // Go one day into the past

	cout << "After prev(): ";
	d.print();  // Should now be 2/28/2025
	cout << endl;

	return EXIT_SUCCESS;
}