#include <iostream> using namespace std; class Date { public: Date(int year = 0, int month = 0, int day = 0) :_year(year) , _month(month) , _day(day) { } int GetMonthDay(int year, int month) { static int tomonth[13] = { 0,31,28,31,30,31,30,31,31,30,31,30,31 }; if (month == 2 && (year %...