时间的比较*

编译器:C++ (g++)

请设计时间类TIME，实现时间的输入、输出和比较。

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

/*  你提交的代码将被嵌在这里  */

int  main()
{
        TIME  a,  b;
        cin  >>  a  >>  b;
        if  (a  >  b)
        {
                cout  <<  "Yes\n";
        }
        else
        {
                cout  <<  "No\n";
        }
        return  0;
}

Ans:

class TIME {
private:
    int hours;
    int minutes;
    int seconds;

public:
    // 构造函数
    TIME() : hours(0), minutes(0), seconds(0) {}

    // 重载输入运算符
    friend istream& operator>>(istream& input, TIME& time) {
        char colon;
        input >> time.hours >> colon >> time.minutes >> colon >> time.seconds;
        return input;
    }

    // 重载输出运算符
    friend ostream& operator<<(ostream& output, const TIME& time) {
        output << setfill('0') << setw(2) << time.hours << ":"
               << setfill('0') << setw(2) << time.minutes << ":"
               << setfill('0') << setw(2) << time.seconds;
        return output;
    }

    // 重载大于运算符
    friend bool operator>(const TIME& left, const TIME& right) {
        if (left.hours > right.hours) {
            return true;
        } else if (left.hours == right.hours) {
            if (left.minutes > right.minutes) {
                return true;
            } else if (left.minutes == right.minutes) {
                return left.seconds > right.seconds;
            }
        }
        return false;
    }
};