box_it_class.cpp

#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)ox

class Box
{
    private:
        int length, breadth, height;
    public:
        Box()
        {
            length = 0;
            breadth = 0;
            height = 0;
        }
        
        Box(int l, int b, int h)
        {
            length = l;
            breadth = b;
            height = h;
        }
  
        Box (Box& B)
        {
            length = B.length;
            breadth = B.breadth;
            height = B.height;
        }
        
        int getLength()
        {
            return length;
        }
        
        int getBreadth()
        {
            return breadth;
        }
        
        int getHeight()
        {
            return height;
        }
        
        long long CalculateVolume()
        {
            return length * breadth * height;
        }
    
        friend bool operator < (Box&a, Box& b)
        {
            if( (a.length < b.length) || 
                ((a.breadth < b.breadth) && (a.length == b.length)) ||
                ((a.height < b.height ) && (a.breadth == b.breadth) && (a.length == b.length)  ))
                return true;
            else 
                return false;

        }
        
        friend ostream& operator << (ostream& output, Box& B)
        {
            output << B.length << " " << B.breadth << " " << B.height;
            return output;
        }  
};

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();
}