Polynomial cPoly1, cPoly2, cPoly3;

cPoly1.input ();
cPoly2.input ();
cout << cPoly1.degree () << endl;
cPoly1.print ();
cout << endl;
cPoly3 = cPoly1 + cPoly2;
cPoly3.print ();
cout << endl;
cPoly3 = cPoly1 - cPoly2;
cPoly3.print ();
cout << endl;
cout << cPoly1.eval (2) << endl;

Input data:

1 5 2
2 5 3 2 1

RESULTS

5
2.00X^5
5.00X^5 + 1.00X^2
-1.00X^5 - 1.00X^2
64.00  

Polynomial cPoly[10];
for (int i = 0; i < 5; ++i)
{
  cPoly[i].input ();
}
for (int i = 0; i < 5; ++i)
{
  cPoly[i].print ();
  cout << endl;
}
cPoly[5] = cPoly[0] + cPoly[1] + cPoly[2] + cPoly[3] + cPoly[4];
cPoly[5].print ();
cout << endl;
cout << cPoly[5].degree () << endl;
cout << cPoly[5].eval (2) << endl;
cPoly[6] = cPoly[0] + cPoly[1] - cPoly[2] + cPoly[3] - cPoly[4] + cPoly[5];
cPoly[6].print ();
cout << endl;

Input data:
1 5 5
1 4 4
1 3 3
1 2 2
1 1 1

RESULTS

5.00X^5
4.00X^4
3.00X^3
2.00X^2
1.00X^1
5.00X^5 + 4.00X^4 + 3.00X^3 + 2.00X^2 + 1.00X^1
5
258.00
10.00X^5 + 8.00X^4 + 4.00X^2

Input data:
1 1 1
1 2 2
1 3 3
1 4 4
1 5 5

RESULTS

1.00X^1
2.00X^2
3.00X^3
4.00X^4
5.00X^5
5.00X^5 + 4.00X^4 + 3.00X^3 + 2.00X^2 + 1.00X^1
5
258.00
8.00X^4 + 4.00X^2 + 2.00X^1