time24.cpp

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#include"time24.h"
#include<iostream>
using namespace std;
void  time24::normalizeTime()
{
   int extraHours = minute / 60;

   // set minute in range 0 to 59
   minute %= 60;

   // update hour. set in range 0 to 23
   hour = (hour + extraHours) % 24;
}
	
// constructor. initialize time data
time24::time24(int h, int m) : hour(h), minute(m)
{
   // put hour and minute in correct range
	normalizeTime();
}

void time24::readTime()
{
   cin>>hour>>minute;
   normalizeTime();
}

// output time in the format <hour>:<minute>
void time24::writeTime() const
{
     cout<<hour<<":"<<minute<<endl;
}
int operator- (const time24& lhs, const time24& rhs)
{
	return ( (lhs.hour*60 + lhs.minute) -(rhs.hour*60 + rhs.minute));
}
int time24::get_minute()
{
	return  hour*60 + minute;
}