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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class Polynomial {
  5. private:
  6.     int a, b, c;
  7. public:
  8.     Polynomial(int a, int b, int c) : a(a), b(b), c(c) {}
  9.  
  10.     int getA() const { return a; }
  11.     int getB() const { return b; }
  12.     int getC() const { return c; }
  13.  
  14.     Polynomial operator+(const Polynomial& n) const {
  15.         return Polynomial(a + n.a, b + n.b, c + n.c);
  16.     }
  17.  
  18.     Polynomial operator-(const Polynomial& n) const {
  19.         return Polynomial(a - n.a, b - n.b, c - n.c);
  20.     }
  21.  
  22.     Polynomial operator*(int scalar) const {
  23.         return Polynomial(a * scalar, b * scalar, c * scalar);
  24.     }
  25. };
  26.  
  27. ostream& operator<<(ostream& out, const Polynomial& n) {
  28.     if (n.getA() == 0 && n.getB() == 0 && n.getC() == 0) {
  29.         out << "0";
  30.     }
  31.  
  32.     if (n.getA() != 0) {
  33.         out << n.getA() << "x^2";
  34.     }
  35.  
  36.     if (n.getB() != 0) {
  37.         if (n.getB() > 0) { 
  38.             out << "+" << n.getB() << "x"; 
  39.         } else { 
  40.             out << n.getB() << "x"; 
  41.         }
  42.     }
  43.  
  44.     if (n.getC() != 0) {
  45.         if (n.getC() > 0) { 
  46.             out << "+" << n.getC(); 
  47.         } else { 
  48.             out << n.getC(); 
  49.         }
  50.     }
  51.  
  52.     return out;
  53. }
  54.  
  55. int main() {
  56.     Polynomial n1(-2, 8, 3);
  57.     Polynomial n2(9, 0, 5);
  58.  
  59.     cout << "First Polynomial: " << n1 << endl;
  60.     cout << "Second Polynomial: " << n2 << endl;
  61.  
  62.     cout << "Addition: " << n1 + n2 << endl;
  63.     cout << "Difference: " << n1 - n2 << endl;
  64.     cout << "Multiplication: " << n1 * 8 << endl;
  65.  
  66.     return 0;
  67. }
Success #stdin #stdout 0.01s 5276KB
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stdin
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Standard input is empty
stdout
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First Polynomial: -2x^2+8x+3
Second Polynomial: 9x^2+5
Addition: 7x^2+8x+8
Difference: -11x^2+8x-2
Multiplication: -16x^2+64x+24
https://ideone.com/wDG24Z
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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