Question

C++ // Need to create a class which contains and operates on complex numbers. A complex number is defined as “a number that can be expressed in the form a + bi, where a and b are real numbers, and i is imaginary” a is called the real part and b is called the imaginary part. The class MyComplexClass will store the complex number as separate real part and imaginary part values.

MyComplexClass Private Member Variables

*One double for the real part.

*One double for the imaginary part.

*bool isWhole() Function that returns true if both the real and imaginary part are whole numbers (ie no decimal component).

MyComplexClass Public Member Variables

*int findGCD() - Returns the greatest common divisor (GCD) of the real part and imaginary part only when the real part and imaginary part are whole numbers. If the real part or imaginary part are not whole it returns 0. The GCD can be determined for whole numbers n1 and n2 with this logic:

IF n1 is negative
Convert n1 to positive
IF n2 is negative
Convert n2 to positive
FOR  i = 1; i <= n1 && i <= n2; ++i
IF n1 % i == 0 && n2 % i == 0
gcd = i
END IF
END FOR

Answer 1

#include<bits/stdc++.h>
using namespace std;

class MyComplexClass
{
   double real;
   double img;
   bool isWhole()
   {
       if(abs(real-int(real))==0 and abs(img-int(img))==0) /// check for absence of decimal part
           return(true); // in case of absence of decimal , its actual and int value will be equal
       else // and difference will be zero and it should be applicable for both return(false);   //data  members
   }
   public:
   MyComplexClass() // constructor ... you can skip this part as you wish
   {
       real=0.0;
       img=0.0;
   }
   void setValue(double a,double b) // since both member variables are private , we must have a public function
   { // to set its values .
       real=a;
       img=b;
   }
  
   int findGCD()
   {
       if(isWhole()==false) // isWhole() is a private member function but a public member function can call
           return(0); // any private member function
       else
       {   
           int a=real; // we don't want to change the actual complex number . so taking two separate
           int b=img; // variables to find GCD
           if(a<0) // Rest part is according to the given algorithm
               a=-a;
           if(b<0)
               b=-b;
           int gcd;
           for(int i=1;i<=a and i<=b;++i)
           {
               if(a%i==0 and b%i==0)
                   gcd=i;
           }
           return(gcd);
       }
   }
};
int main()
{
   MyComplexClass temp;
   temp.setValue(10,25.0);
   cout<<temp.findGCD()<<endl;
   return(0);
}
// the Output in this case is : 5