15 Box It

#include<bits/stdc++.h>

using namespace std;
//Implement the class Box  
//l,b,h are integers representing the dimensions of the box

// The class should have the following functions : 
// Constructors: 
// Box();
// Box(int,int,int);
// Box(Box);

// int getLength(); // Return box's length
// int getBreadth (); // Return box's breadth
// int getHeight ();  //Return box's height
// long long CalculateVolume(); // Return the volume of the box

//Overload operator < as specified
//bool operator<(Box& b)

//Overload operator << as specified
//ostream& operator<<(ostream& out, Box& B)

class Box
{
    private:
        int l,b,h;
    
    public:
        Box()
        {
            l = b = h = 0;
        }
        Box(int length,int breadth,int height)
        {
            l = length;
            b = breadth;
            h = height;
        }
        Box(const Box &B)
        {
            l = B.l;
            b = B.b;
            h = B.h;
        }

        int getLength()
        {
            return(l);
        }
        int getBreadth()
        {
            return(b);
        }
        int getHeight()
        {
            return(h);
        }

        long long CalculateVolume()
        {
            return ((long long)l*b*h);
        }

        friend bool operator < (Box &b1, Box &b2)
        {
            if((b1.l < b2.l) || (b1.l == b2.l && b1.b < b2.b) ||
               (b1.l == b2.l && b1.b == b2.b && b1.h <b2.h))
                return(true);
            else
                return(false);
        }

        friend ostream& operator << (ostream &s,Box &b1)
        {
            s << b1.l << " " << b1.b << " " << b1.h;
            return s;
        }
};

void check2()
{
	int n;
	cin>>n;
	Box temp;
	for(int i=0;i<n;i++)
	{
		int type;
		cin>>type;
		if(type ==1)
		{
			cout<<temp<<endl;
		}
		if(type == 2)
		{
			int l,b,h;
			cin>>l>>b>>h;
			Box NewBox(l,b,h);
			temp=NewBox;
			cout<<temp<<endl;
		}
		if(type==3)
		{
			int l,b,h;
			cin>>l>>b>>h;
			Box NewBox(l,b,h);
			if(NewBox<temp)
			{
				cout<<"Lesser\n";
			}
			else
			{
				cout<<"Greater\n";
			}
		}
		if(type==4)
		{
			cout<<temp.CalculateVolume()<<endl;
		}
		if(type==5)
		{
			Box NewBox(temp);
			cout<<NewBox<<endl;
		}

	}
}

int main()
{
	check2();
}