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#include <iostream>
#include <cmath>
using namespace std;
class Date
{
private:
int m;
int d;
int y;
public:
Date(int, int, int);
int getLeapYears();
int getTotalDays();
int operator-(Date&);
};
int main()
{
int day, month, year;
char c;
cout << "Enter a start date (m/d/y): " << endl;
cin >> month >> c >> day >> c >> year;
Date start = Date(month, day, year);
cout << "Enter an end date (m/d/y): " << endl;
cin >> month >> c >> day >> c >> year;
Date end = Date(month, day, year);
int duration = end-start;
cout << "The number of days between those two dates are: " <<
duration << endl;
return 0;
}
Date::Date(int a, int b, int c)
{
m = a;
d = b;
y = c;
}
const int monthDays[13] = {0,31,28,31,30,31,30,31,31,30,31,30,31};
int Date::getLeapYears()
{
int years = y;
if (m <= 2)
years--;
return years / 4 - years / 100 + years / 400;
}
int Date::getTotalDays()
{
int n1 = y*365 + d;
for (int i=0; i<m - 1; i++)
{
n1 += monthDays[i];
n1 += getLeapYears();
}
return n1;
}
int Date::operator-(Date& d) {
int difference = getTotalDays() - d.getTotalDays();
return difference;
}
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