Question

Single inheritance

Given two integer numbers N1 and N2, create a class 'ProblemSolution' with following characteristics.

1. Must extend a 'Base' class.
2. Create a method 'solution' with two integer parameters (N1 and N2) and long return type.
3. The 'solution' method should call the addition and subtraction methods of 'Base' class and return multiplication of returned results of addition and subtraction method.

Result = (N1 + N2) * (N1 - N2)

What is inheritance?
Inheritance is a mechanism in which one object acquires all the properties and behaviors of the parent object.
Reference: https://www.tutorialspoint.com/cplusplus/cpp_inheritance.htm

Input
    50
    10

Output
    2400

Given:

#include <iostream>
using namespace std;

// Base class
class Base {
public:
int addition(int N1, int N2) {
int result = N1 + N2;
return result;
}
  
int subtraction(int N1, int N2) {
int result = N1 - N2;
return result;
}
  

};

   //write your code here

int main() {
int N1;
int N2;
cin >> N1;
cin >> N2;
ProblemSolution problemSolution;
cout << problemSolution.solution(N1,N2);
return 0;
}

C++

Must Run:

Both numbers being 0

1 negative and 1 positive number

both negative numbers

Large numbers

Answer 1

I have included my code and screenshots in this answer. In case, there is any indentation issue due to editor, then please refer to code screenshots to avoid confusion.

-------------------main.cpp-------------------

#include <iostream>
#include <string>
using namespace std;

// Base class
class Base
{
   public:
   int addition(int N1, int N2) //adds two numbers
   {
       int result = N1 + N2;
       return result;
   }

   int subtraction(int N1, int N2) //subtracts two numbers
   {
       int result = N1 - N2;
       return result;
   }
};

//write your code here
class ProblemSolution: public Base //Class ProblemSolution inherited from Base class
{
   public:
       long solution(int N1, int N2)
       {
           long ans;
           ans = (long)Base::addition(N1, N2) * (long)Base::subtraction(N1, N2); //(N1+N2)*(N1-N2)
           return ans;
       }
};

int main()
{
   int N1;
   int N2;
   cin >> N1;
   cin >> N2;
   ProblemSolution problemSolution; //object of ProblemSolution class
   cout << problemSolution.solution(N1,N2) << endl;
   return 0;
}

-------------------Screenshot main.cpp-------------------

-------------------Output----------------------

--------------------------------------------------------

I hope this helps you,

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Thanks for the opportunity