if判断即可

#include <bits/stdc++.h>
using namespace std;
int main()
{
	double x, y;
	cin >> x >> y;
	if ((x >= 60 && y < 60) || (x < 60 && y >= 60))
    {
		cout << "green";
	}
    else
    {
		cout << "red";
	}
    return 0;
} //代码已AC

#include <bits/stdc++.h>
using namespace std;
int main()
{
    float a,b;
    cin>>a>>b;
    if((a<60&&b>=60)||(b<60&&a>=60)) cout<<"green";
    else cout<<"red";
    return 0;
}

#include <bits/stdc++.h>
using namespace std;
double a, b;
int main()
{
    cin >> a >> b;
    if ((a < 60 && b >= 60) || (a >= 60 && b < 60))
    {
        cout << "green";
    }
    else
    {
        cout << "red";
    }
    return 0;
}

#include<bits/stdc++.h>
using namespace std;
int main()
{
    double x,y;
    cin>>x>>y;
    if (max(x,y)>=60&&min(x,y)<60)
        cout<<"green";
    else
        cout<<"red";
    return 0;
}