#include <iostream>
#include <vector>
#include <time.h>
using namespace std;

enum TIME_TABLE_TYPE {
    TT_LESSON,TT_SMALL_BREAK,TT_LONG_BREAK
};

struct tm add_time(struct tm time1, struct tm time2);
void print_time(struct tm timeinfo);

int main() {
	struct tm lesson_start;
	struct tm lesson_length;
	struct tm small_break;
	struct tm long_break;
	
	// Init default values
	lesson_start.tm_hour = 8;
	lesson_start.tm_min = 45;
	
	lesson_length.tm_hour = 0;
	lesson_length.tm_min = 45;
	
	small_break.tm_hour = 0;
	small_break.tm_min = 30;
	
	long_break.tm_hour = 0;
	long_break.tm_min = 45;
	
	// Init time_table
	vector <int> time_table = {TT_LESSON,TT_SMALL_BREAK,TT_LESSON,TT_SMALL_BREAK,TT_LESSON,TT_SMALL_BREAK,TT_LESSON,
	TT_LONG_BREAK,TT_LESSON};
	
	struct tm timeinfo = lesson_start;
	
	for(vector<int>::iterator i = time_table.begin(); i != time_table.end(); i++) {
    	if (*i == TT_LESSON) {
    		print_time(timeinfo);
    		timeinfo = add_time(timeinfo,lesson_length);
    		print_time(timeinfo);
    	} else if (*i == TT_SMALL_BREAK) {
    		timeinfo = add_time(timeinfo,small_break);
    	} else if (*i == TT_LONG_BREAK) {
    		timeinfo = add_time(timeinfo,long_break);
    	}
    }

	return 0;
}

void print_time(struct tm timeinfo) {
	cout << timeinfo.tm_hour << " : " << timeinfo.tm_min <<  endl;
}

struct tm add_time(struct tm time1, struct tm time2) {
	time1.tm_hour +=time2.tm_hour;
	time1.tm_min += time2.tm_min;
	if (time1.tm_min >= 60) {
		time1.tm_hour = time1.tm_hour + 1;
		time1.tm_min -= 60;
	}
	
	return time1;
}