Question

Programming Question 4: Operator Overloading [20 marks] The class SpecialArray represents an array of integers. The class contains two data members: array (of type int"), which represents the array of integers, and size (of type int) that represents the size of the array. The class SpecialArray also overloads the following operators: operator: Compares two arrays. An array "A" is smallerhan an array "B" if the size of array "A" is smaller than the size of "B", or if the sum of the elements of"A" is smaller than the sum of the elements of "B" in case the size is the same. operator: The opposite of the < operator operator: Two arrays are equal if their size is the same and the sum of their elements is also the same. 1. Provide the implementation of the operator15 marks] bool SpecialArray: :operator< (const SpecialArray & s) const; 2. Provide the implementation of the operator> [5 marks] bool SpecialArray: :operator< (const SpecialArray&s) const: 3. Provide the implementation of the operator[5 marks] bool SpecialArray::operator(const SpecialArray& s) const; Provide an implementation for the operator<<[5 marks]: ostreams operator<< (ostream& out, const SpecialArray & s) This function prints outs the elements of the array separate by a space. 4.

C++ please

Answer 1

Code:

#include<iostream>
using namespace std;
class SpecialArray
{
   public:
   int *arr;
   int size;
   SpecialArray(int n)
   {
       size=n;
       arr=new int[size];
   }
   void setArray()//sets array
   {
       int i;
       cout<<"enter array's contents:"<<endl;
       for(i=0;i<size;i++)
       {
           cin>>arr[i];
       }
   }
   bool operator < (const SpecialArray& s) const
   {
       if(size<s.size) return true;//if size is less than other array return true
       int i, asum=0, bsum=0;
       for(i=0;i<size;i++)//calculate sum of two arrays
       {
           asum+=arr[i];
       }
       for(i=0;i<s.size;i++)
       {
           bsum+=s.arr[i];
       }
       if(asum<bsum) return true;
       return false;
   }
   bool operator >(const SpecialArray& s) const
   {
       if(size>s.size) return true;
       int i, asum=0, bsum=0;
       for(i=0;i<size;i++)
       {
           asum+=arr[i];
       }
       for(i=0;i<s.size;i++)
       {
           bsum+=s.arr[i];
       }
       if(asum>bsum) return true;
       return false;
   }
   bool operator ==(const SpecialArray& s) const
   {
       if(size!=s.size) return false;//if sizes arent equal
       int i, asum=0, bsum=0;
       for(i=0;i<size;i++)
       {
           asum+=arr[i];
       }
       for(i=0;i<s.size;i++)
       {
           bsum+=s.arr[i];
       }
       if(asum==bsum) return true;//if sums are equal
       return false;
   }
};
ostream & operator << (ostream &out, const SpecialArray &s)
{
   int i;
   for(i=0;i<s.size;i++)
   {
       out<<s.arr[i]<<" ";
   }
}
int main()
{
   SpecialArray s1(3),s2(5);
   s1.setArray();s2.setArray();
   if(s1<s2)
   {
       cout<<"s1 is less than s2"<<endl;
   }
   if(s1>s2)
   {
       cout<<"s1 is greater than s2"<<endl;
   }
   if(s1==s2)
   {
       cout<<"s1 is less than s2"<<endl;
   }
   cout << s2;
   return 0;
}

Output:

nter array's contents: 5 9 10 nter array's contents: 3 89 1 2 s1 is less than s2 s1 is greater than s2 3 89 1 2 Process exited after 11.83 seconds with return value e Press any key to continue . . . 8 1