#include <iostream>
using std::cout;
using std::endl;
// Time abstract data type (ADT) definition
class Time {
public:
   Time();               // default constructor
   void setTime(int, int, int);  
   void printMilitary();         
   void printStandard();         
private:
   int hour;     // 0 - 23
   int minute;   // 0 - 59
   int second;   // 0 - 59
};
// Time constructor initializes each data member to zero.
// Ensures all Time objects start in a consistent state.
Time::Time() { hour = minute = second = 0; }

// Set a new Time value using military time.
// Perform validity checks on the data values.
// Set invalid values to zero (consistent state)
void Time::setTime(int h, int m, int s)
{
   hour = (h >= 0 && h < 24) ? h : 0;
   minute = (m >= 0 && m < 60) ? m : 0;
   second = (s >= 0 && s < 60) ? s : 0;
}
// Print Time in military format
void Time::printMilitary()
{
   cout << (hour < 10 ? "0" : "") << hour << ":"
	<< (minute < 10 ? "0" : "") << minute << ":"
	<< (second < 10 ? "0" : "") << second;
}

// Print time in standard format
void Time::printStandard()
{
   cout << ((hour == 0 || hour == 12) ? 12 : hour % 12)
	<< ":" << (minute < 10 ? "0" : "") << minute
	<< ":" << (second < 10 ? "0" : "") << second
	<< (hour < 12 ? " AM" : " PM");
}
// Driver to test simple class Time
int main()
{
   Time t;  // instantiate object t of class Time

   cout << "The initial military time is ";
   t.printMilitary();
   cout << "\nThe initial standard time is ";
   t.printStandard();

   t.setTime(13, 27, 6);
   cout << "\n\nMilitary time after setTime is ";
   t.printMilitary();
   cout << "\nStandard time after setTime is ";
   t.printStandard();
   t.setTime(99, 99, 99);  
   // attempt invalid settings
   cout << "\n\nAfter attempting invalid settings:\n"
        << "Military time: ";
   t.printMilitary();
   cout << "\nStandard time: ";
   t.printStandard();
   cout << endl;

   return 0;
}