HackerRank Box It! solution in c++ programming

In this HackerRank Box It! problem in c++ programming language you need to Design a class named Box whose dimensions are integers and private to the class. The dimensions are labelled: length l, breadth b, and height h.

The default constructor of the class should initialize l, b, and h to 0.

The parameterized constructor Box(int length, int breadth, int height) should initialize Box's l,b and h to length, breadth and height.

The copy constructor Box(Box B) should set l,b and h to B's l,b and h, respectively.

Apart from the above, the class should have 4 functions:

• 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 the operator < for the class Box. Box A < Box B if:

1. A.l < B.l
2. A.b < B.b and A.l==B.l
3. A.h < B.h and A.b==B.b and A.l==B.l

Overload operator << for the class Box().

If B is an object of class Box:

cout<<B should print B.l, B.b and B.h on a single line separated by spaces.

HackerRank Box It! problem solution in c++ programming.

#include<bits/stdc++.h>

using namespace std;
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();
}