HackerRank C++ Multi Level Inheritance
n the previous problem we learned about Inheritance and how can a derived class object use the member functions of the base class.
In this we will see what multi-level inheritance is. Suppose we have a class A which is the base class and we have a class B which is derived from class A and we have a class C which is derived from class B, we can access the functions of both class A and class B by creating an object for class C. This is called Multi-Level inheritance. (B inherits A and C inherits B.)
Now create a class called Equilateral which inherits from Isosceles and should have a function such that the output is as given below.
- #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";
- }
- };
-
- class Equilateral:public Isosceles
- {
- public:
- void equilateral()
- {
- cout<<"I am an equilateral triangle\n";
- }
- };
-
- int main()
- {
-
- Equilateral eqr;
-
- eqr.equilateral();
-
- eqr.isosceles();
-
- eqr.triangle();
-
- return 0;
-
- }