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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. struct Punkt {
  6.     double x;
  7.     double y;
  8. };
  9.  
  10. struct Prosta {
  11.     double A;
  12.     double B;
  13.     double C;
  14. };
  15.  
  16. bool taSamaStrona(Prosta p, Punkt P1, Punkt P2)
  17. {
  18.     double W1 = p.A * P1.x + p.B * P1.y + p.C;
  19.     double W2 = p.A * P2.x + p.B * P2.y + p.C;
  20.  
  21.     return (W1 * W2 > 0);
  22. }
  23.  
  24. int main()
  25. {
  26.     Prosta prosta;
  27.     Punkt P1, P2;
  28.  
  29.     cout << "Podaj A, B, C: ";
  30.     cin >> prosta.A >> prosta.B >> prosta.C;
  31.  
  32.     cout << "Podaj xP1, yP1: ";
  33.     cin >> P1.x >> P1.y;
  34.  
  35.     cout << "Podaj xP2, yP2: ";
  36.     cin >> P2.x >> P2.y;
  37.  
  38.     if (taSamaStrona(prosta, P1, P2))
  39.         cout << "Punkty leza po tej samej stronie prostej." << endl;
  40.     else
  41.         cout << "Punkty NIE leza po tej samej stronie prostej." << endl;
  42.  
  43.     return 0;
  44. }
Success #stdin #stdout 0.01s 5304KB
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Standard input is empty
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Podaj A, B, C: Podaj xP1, yP1: Podaj xP2, yP2: Punkty NIE leza po tej samej stronie prostej.
https://ideone.com/h5Nl6V
language:
C++ (gcc 8.3)
created:
18 hours ago
visibility:
public

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