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#include <iostream>
#include <string>
 
using namespace std;
 
class time
{
public:
	time(){}
	int hour;
	int minute;
};
 
ostream & operator<<(ostream &out, time &a)
{
	if (a.hour <= 9)
		out << 0 << a.hour << ":";
	else
		out << a.hour << ":";
	if (a.minute <= 9)
		out << 0 << a.minute;
	else
		out << a.minute;
	return out;
}
 
istream & operator>>(istream &in, time &a)
{
	string x;
	in >> x;
 
	if (x[0] == 0)
		a.hour = x[1] - 48;
	else
		a.hour = (x[0] - 48) * 10 + x[1] - 48;
 
	if (x[3] == 0)
		a.minute = x[4] - 48;
	else
		a.minute = (x[3] - 48) * 10 + x[4] - 48;
 
	return in;
}
 
time operator+(time t1, time t2)
{
	time t3;
	t3.hour = t1.hour + t2.hour;
	if (t3.hour >= 24)
		t3.hour -= 24;
	t3.minute = t1.minute + t2.minute;
	while (t3.minute >= 60)
	{
		t3.hour++;
		t3.minute -= 60;
	}
 
	return t3;
}
 
time operator+(time t1, int b)
{
	t1.minute += b;
 
	while (t1.minute >= 60)
	{
		t1.hour++;
		t1.minute -= 60;
	}
 
	while (t1.hour >= 24)
	{
		t1.hour -= 24;
	}
 
	return t1;
}
 
int main()
{
	time t; cin >> t;
	cout << t << ",";
	int a;
 
	while (cin >> a)
	{
		t = t + a;
		cout << t << ",";
	}
 
	return 0;
}
 

prog.cpp:14: error: 'time' is not a type
prog.cpp: In function 'std::ostream& operator<<(std::ostream&, int&)':
prog.cpp:16: error: request for member 'hour' in 'a', which is of non-class type 'int'
prog.cpp:17: error: request for member 'hour' in 'a', which is of non-class type 'int'
prog.cpp:19: error: request for member 'hour' in 'a', which is of non-class type 'int'
prog.cpp:20: error: request for member 'minute' in 'a', which is of non-class type 'int'
prog.cpp:21: error: request for member 'minute' in 'a', which is of non-class type 'int'
prog.cpp:23: error: request for member 'minute' in 'a', which is of non-class type 'int'
prog.cpp: At global scope:
prog.cpp:27: error: 'time' is not a type
prog.cpp: In function 'std::istream& operator>>(std::istream&, int&)':
prog.cpp:33: error: request for member 'hour' in 'a', which is of non-class type 'int'
prog.cpp:35: error: request for member 'hour' in 'a', which is of non-class type 'int'
prog.cpp:38: error: request for member 'minute' in 'a', which is of non-class type 'int'
prog.cpp:40: error: request for member 'minute' in 'a', which is of non-class type 'int'
prog.cpp: At global scope:
prog.cpp:45: error: expected constructor, destructor, or type conversion before 'operator'

Standard output is empty