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10_Composition.cpp
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10_Composition.cpp
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#include <iostream>
#include <string>
#include <cstdlib>
#include <vector>
using namespace std;
class Date {
public:
Date(int d, int m, int y);
void set_date(int d, int m, int y);
void print_date();
void inc_one_day();
bool equals(Date d);
int get_day() { return day; }
int get_month() { return month; }
int get_year() { return year; }
static bool is_leap_year(int year);
private:
int day;
int month;
int year;
};
Date::Date(int d, int m, int y)
{
set_date(d, m, y);
}
static bool is_leap_year(int year)
{
int r = year % 33;
return r==1 || r==5 || r==9 || r==13 || r==17 || r==22 || r==26 || r==30;
}
int days_of_month(int m, int y)
{
if (m < 7)
return 31;
else if (m < 12)
return 30;
else if (m == 12)
return is_leap_year(y) ? 30 : 29;
else
abort();
}
void Date::set_date(int d, int m, int y)
{
if (y < 0 || m < 1 || m > 12 || d < 1 || d > days_of_month(m, y))
abort();
day = d;
month = m;
year = y;
}
void Date::inc_one_day()
{
day++;
if (day > days_of_month(month, year)) {
day = 1;
month++;
if (month > 12) {
month = 1;
year++;
}
}
}
void Date::print_date()
{
cout << day << '/' << month << '/' << year << endl;
}
bool Date::equals(Date d) {
return day == d.day && month == d.month && year == d.year;
}
Date str_to_date(string s) {
//TODO: Handle formatting errors
int slash_pos = s.find('/');
int d = atoi(s.substr(0, slash_pos).c_str());
s = s.substr(slash_pos + 1);
slash_pos = s.find('/');
int m = atoi(s.substr(0, slash_pos).c_str());
int y = atoi(s.substr(slash_pos + 1).c_str());
return Date(d, m, y);
}
class Person {
public:
Person(string n, int d, int m, int y);
Date get_bdate() { return bdate; }
string get_name() { return name; }
private:
string name;
Date bdate;
};
Person::Person(string n, int d, int m, int y)
: bdate(d, m, y)
{
if (n == "")
abort();
name = n;
}
int main()
{
cout << Date::is_leap_year(1365);
}