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

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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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