Inheritance Introduction in C++ – Hacker Rank Solution | HackerRank Programming Solutions | HackerRank C++ Solutions

Hello Programmers/Coders, Today we are going to share solutions of Programming problems of HackerRank of Programming Language C++ . At Each Problem with Successful submission with all Test Cases Passed, you will get an score or marks. And after solving maximum problems, you will be getting stars. This will highlight you profile to the recruiters.

In this post, you will find the solution for Rectangle Area in C++-HackerRank Problem. We are providing the correct and tested solutions of coding problems present on HackerRank. If you are not able to solve any problem, then you can take help from our Blog/website.

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Introduction To C++

C++ is a general-purpose programming language that was developed as an enhancement of the C language to include object-oriented paradigm. It is an imperative and a compiled language. 

C++ is a middle-level language rendering it the advantage of programming low-level (drivers, kernels) and even higher-level applications (games, GUI, desktop apps etc.). The basic syntax and code structure of both C and C++ are the same. 

C++ programming language was developed in 1980 by Bjarne Stroustrup at bell laboratories of AT&T (American Telephone & Telegraph), located in U.S.A. Bjarne Stroustrup is known as the founder of C++ language.

Rectangle Area in C++- Hackerrank Solution

Problem

One of the important topics of Object Oriented Programming is Inheritance. Inheritance allows us to define a class in terms of another class, which allows us in the reusability of the code.Check out the code below:

class Triangle{
    public:
        void triangle(){
            cout<<"I am a triangle\n";
        }
};

The class Triangle has a function called triangle(). Now we create a class derived from the base class Triangle called Isosceles.

class Isosceles : public Triangle{
    public:
        void isosceles(){
            cout<<"I am an isosceles triangle\n";
        }
};

Now we can create a derived class object and use it to access the functions of the base class.

int main(){
    Isosceles isc;
    isc.isosceles();
    isc.triangle();
    return 0;
}

This code will print:

I am an isosceles triangle
I am a triangle

Now write a function in Isosceles class such that the output is as given below.


Sample Output :

I am an isosceles triangle
In an isosceles triangle two sides are equal
I am a triangle
Inheritance Introduction in C++ – Hacker Rank Solution
#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


class Triangle
{
    public:
    	void triangle()
    	{
     		cout<<"I am a triangle\n";
    	}
};

class Isosceles : public Triangle
{
    public:
    	void isosceles()
    	{
    		cout<<"I am an isosceles triangle\n";
    	}
  	//Write your code here.
  	/* Inheritance Introduction in C++ - Hacker Rank Solution START */
        void description()
        {
            cout << "In an isosceles triangle two sides are equal" << endl;
        }
        /* Inheritance Introduction in C++ - Hacker Rank Solution END */
};

int main()
{
    Isosceles isc;
    isc.isosceles();
  	isc.description();
    isc.triangle();
    return 0;
}

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