一、KY222题目

二、代码

#include <climits>
#include <iostream>
using namespace std;
class Date{public:Date(int year =1,int month =2,int day =3){_year = year;_month = month;_day = day;}int GetDay(int year ,int month);void Define(int n);public:int _year;int _month;int _day;
};
int Date::GetDay(int year ,int month){static int a[13] = { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };if(month == 2){if((year%4==0 && year%100!=0 ) || year%400 == 0)return 29;}return a[month];}
void Date::Define(int n)
{_day +=n;while(_day>GetDay(_year,_month)){_day -=GetDay(_year,_month);++_month;if(_month == 13){++_year;_month =1;}}
}int main() {int year,num;cin>>year>>num;Date d(year,1,0);d.Define(num);printf("%04d-%02d-%02d",d._year,d._month,d._day);return 0;}
// 64 位输出请用 printf("%lld")

三、KY111题目

四、代码

#define _CRT_SECURE_NO_WARNINGS 1
#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 GetDay(int year, int month);bool operator<(const Date& d);int D_value(Date d);//计算日期差int Total_end();//某一年1月1日到某一天一共有多少天int Total_year();//某一年的总天数
public:int _year;int _month;int _day;};int Date::GetDay(int year, int month) {const static int a[13] = { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };if (month == 2) { //某年是闰年的时候，2月为29if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0) {return 29;}}return a[month];
}bool Date::operator<(const Date& d)
{if (_year < d._year)return true;else if (_year == d._year && _month < d._month)return true;else if (_year == d._year && _month == d._month && _day < d._day)return true;elsereturn false;
}int Date::Total_end()//某一年1月1日到某一天一共有多少天
{int sum = _day;while (--_month){sum += GetDay(_year, _month);}return sum;
}int Date::Total_year()//某一年的总天数
{int sum = 0;for (int i = 1; i <= 12; i++){sum += GetDay(_year, i);}return sum;
}int Date::D_value(Date d)
{Date tmp(d);if ((*this) < tmp){if (_year == tmp._year){return tmp.Total_end() - this->Total_end();}else{int d1 = this->Total_year() - this->Total_end();int d2 = tmp.Total_end();int x = _year + 1;int d3 = 0;while (x != tmp._year){Date x_(x, 1, 1);d3 += x_.Total_year();x++;}return d1 + d2 + d3;}}else//this大{if (_year == tmp._year){return this->Total_end() - tmp.Total_end();}else{int d1 = tmp.Total_year() - tmp.Total_end();int d2 = this->Total_end();int x = tmp._year + 1;int d3 = 0;while (x != _year){Date x_(x, 1, 1);d3 += x_.Total_year();x++;}return d1 + d2 + d3;}}}int main() {int year_1, month_1, day_1;int year_2, month_2, day_2;int date1, date2;while (scanf("%d%d", &date1, &date2) != EOF){year_1 = date1 / 10000;month_1 = (date1 / 100) % 100;day_1 = date1 % 100;year_2 = date2 / 10000;month_2 = (date2 / 100) % 100;day_2 = date2 % 100;Date d1(year_1, month_1, day_1);Date d2(year_2, month_2, day_2);cout<<d1.D_value(d2)+1;//不加1时，相邻两天差1天return 0;}
}