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.
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#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(); } |