백준 2884 c++

#include <iostream>
using namespace std;

int main(void)
{
	int hour, minute;
	int editted_hour = 0, editted_minute = 0;
	
	cin >> hour >> minute;
	
	if ((hour >= 0 && hour <= 23) && (minute >= 0 && minute <= 59))
	{
		editted_minute = minute - 45;
		if (editted_minute < 0)
		{
			editted_hour = hour - 1;
			if (editted_hour < 0)
			{
				editted_hour = 24 + editted_hour;
			}
			editted_minute = 60 + editted_minute;
		}
		else
		{
			editted_hour = hour;
		}
		cout << editted_hour << " " << editted_minute << endl;
	}

	return 0;
}