Write a C++ program to find out the sum of an A.P. series by using the virtual base class in object oriented programming.
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#include<iostream> using namespace std; class T4Tutorials_Grand_Class { public : int n1,df; }; class p1:virtual public T4Tutorials_Grand_Class { public : int ln; }; class p2:virtual public T4Tutorials_Grand_Class { public : int s1; }; class derived : public p1 , public p2 { protected : int n2, i; public : int apseries() { s1 = 0; cout << " Find out the sum of A.P. series :”<<endl; cout << "Input the starting number of the A.P. series: “<<endl; cin >> n1; cout << "Input the number of items for the A.P. series: “<<endl; cin >> n2; cout << "Input the common difference of A.P. series: “<<endl; cin >> df; s1 = (n2 * (2 * n1 + (n2 - 1) * df)) / 2; ln = n1 + (n2 - 1) * df; cout << "The Sum of the A.P. series are : " << endl; for (i = n1; i <= ln; i = i + df) { if (i != ln) cout << i << " + “<<endl; else cout << i << " = " << s1 << endl; } } }; int main() { derived a; a.apseries(); } |
