I want to add an overload operator #include using namespace std; class

I want to add an overload operator #include<iostream> using namespace std; class

ID: 3859946 • Letter: I

Question

I want to add an overload operator

#include<iostream>
using namespace std;

class Poly {

int degree;

float *coEff;

public:

~Poly() { delete[] coEff; }

void display(ostream &out) {

out << coEff[0];

for (int i = 1; i<degree + 1; i++) out << "+" << coEff[i] << "x^" << i;
cout << endl;

}

void input(istream &in) {

cout << "Enter degree of the polynomial ";

in >> degree;

coEff = new float[degree + 1];

for (int i = 0; i <= degree; i++) { cout << "Enter " << i << "st Cofficient"; in >> coEff[i]; }

}
Poly() {};
Poly(Poly &P) {
degree = P.degree;
coEff = new float[P.degree + 1];
for (int i = 0; i <= P.degree; i++) coEff[i] = P.coEff[i];
}

void operator=( Poly &P) {
delete[] coEff;
degree = P.degree;
coEff = new float[P.degree + 1];
for (int i = 0; i <= P.degree; i++) coEff[i] = P.coEff[i];
}

friend Poly operator+(Poly &P1, Poly &P2);
};

Poly operator+(Poly &P1, Poly &P2) { // implements P = P1 + P2
Poly P;
P.degree = (P1.degree > P2.degree ? P1.degree : P2.degree);
P.coEff = new float[P.degree + 1];
// finish the code from here..

return P;
}

ostream & operator<<(ostream &out, Poly &P) { P.display(out); return out; }
istream & operator>>(istream &in, Poly &P) { P.input(in); return in; }

Explanation / Answer

Poly operator+(Poly &P1, Poly &P2) { // implements P = P1 + P2
       Poly P;
       P.degree = (P1.degree > P2.degree ? P1.degree : P2.degree);
       P.coEff = new float[P.degree + 1];
       // finish the code from here..

   if(P1.degree < P2.degree){
       int i = 0;
       for(;i< P1.degree+1; ++i ){
           P.coEff[i] = P1.coEff[i] + P2.coEff[i];
       }

       for(; i< P2.degree+1; ++i){
           P.coEff[i] = P2.coEff[i];
       }
   }else if(P1.degree == P2.degree){
       int i=0;
       for(; i< P1.degree+1; ++i){
           P.coEff[i] = P1.coEff[i] + P2.coEff[i];
       }
   }else{
       int i=0;
       for(; i< P2.degree+1; ++i){
           P.coEff[i] = P1.coEff[i] + P2.coEff[i];
       }

       for(; i< P1.degree+1; ++i){
           P.coEff[i] = P1.coEff[i];
       }
   }

       return P;
}

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I want to add an overload operator #include<iostream> using namespace std; class

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