90分！求助！

#include <iostream>
#include <cstdio>
using namespace std;
int main()
{
	int h,m,s,k,h2=0,m2=0,s2=0;
	cin >> h >> m >> s >> k;
	if(k/60!=0 || s2+s+k>60)
	{
		s2+=s+k%60;
		if(s2>=60)
		{
			m2++;
			s2-=60;
		}
		m2+=k/60+m;
		if(m2>=60)
		{
			h2++;
			m2-=60;
		}
		h2+=h+k/3600;
	}
	else
	{
		h2=h;
		m2=m;
		s2=s+k;
	}
	cout << h2 << ' ' << m2 << ' ' << s2;
	return 0;
}