C++ Program to display the sum of the series using Multiple inheritance

Write a program in C++ to display the sum of the series using multiple inheritances.

#include <iostream>
using namespace std;
class T4Tutorials
{
	public:
		long int num,i;
	};
class T4Tutorials2
{
	public:
		int sum=0,k=9;
	};
	class child:public T4Tutorials,public T4Tutorials2
	{
		public:
			int function()
			{
				cout<<"input the number of terms";
				cin>>num;
				for(i=1;i<=num;i++)
				{
					sum=sum+k;
					k=k*10+9;
				}
				cout<<"sum of series"<<sum;
			}
		};
		int main()
		{
			child obj;
			obj.function();
		}

#include <iostream>

using namespace std;

class T4Tutorials

{

public:

long int num,i;

};

class T4Tutorials2

{

public:

int sum=0,k=9;

};

class child:public T4Tutorials,public T4Tutorials2

{

public:

int function()

{

cout<<"input the number of terms";

cin>>num;

for(i=1;i<=num;i++)

{

sum=sum+k;

k=k*10+9;

}

cout<<"sum of series"<<sum;

}

};

int main()

{

child obj;

obj.function();

}

Output

Please input the number of terms. 6

the sum of the series is 1111104.

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