Virtual base class C++ Program TO find perfect numbers within range

Write a C++ program to find the perfect numbers within a given number of range by using the virtual base class in Object Oriented Programming.

#include<iostream>
using namespace std;
class A
{
	protected:
 	int num,T4Tutorials_SUM;
    
};
class B:public virtual A
{
  protected:
 	int st,end;
 	B()
 	{
 		st=10;
 		end=50;
	}	
	 
};
class C:public virtual A
{
 public:
 	int i;
};
class D:public B, public C
{
    public:
	 void show()
    {
	 	for(num=st;num<=end;num++)
	{
		i=1;
		T4Tutorials_SUM=0;
		while(i<num)
		{
			if(num%i==0)
			T4Tutorials_SUM=T4Tutorials_SUM+i;
			i++;
		}
		if(T4Tutorials_SUM==num)
		cout<<"The perfect number within the given range are given below."<<endl<<num<<endl;
    }	
    } 
};	
int main()
{
	D object_t4tutorials;
//	obj.in();
	object_t4tutorials.show();
	
}

#include<iostream>

using namespace std;

class A

{

protected:

int num,T4Tutorials_SUM;

};

class B:public virtual A

{

protected:

int st,end;

B()

{

st=10;

end=50;

}

};

class C:public virtual A

{

public:

int i;

};

class D:public B, public C

{

public:

void show()

{

for(num=st;num<=end;num++)

{

i=1;

T4Tutorials_SUM=0;

while(i<num)

{

if(num%i==0)

T4Tutorials_SUM=T4Tutorials_SUM+i;

i++;

}

if(T4Tutorials_SUM==num)

cout<<"The perfect number within the given range are given below."<<endl<<num<<endl;

}

};

int main()

{

D object_t4tutorials;

// obj.in();

object_t4tutorials.show();

}

Output

The perfect number within the given range are given below.

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