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  1. #include <iostream>
  2. #include <cmath>
  3.  
  4. using namespace std;
  5.  
  6. int main() {
  7.     float a, b, c;
  8.     float delta;
  9.     float pierwiastek_delta;
  10.     float x1, x2;
  11.  
  12.     // dane testowe
  13.     a = 3;
  14.     b = 4;
  15.     c = 5;
  16.  
  17.     delta = b * b - 4 * a * c;
  18.  
  19.     cout << "Delta = " << delta << endl;
  20.  
  21.     if (delta > 0) {
  22.         pierwiastek_delta = sqrt(delta);
  23.         x1 = (-b - pierwiastek_delta) / (2 * a);
  24.         x2 = (-b + pierwiastek_delta) / (2 * a);
  25.  
  26.         cout << "x1 = " << x1 << endl;
  27.         cout << "x2 = " << x2 << endl;
  28.     }
  29.     else if (delta == 0) {
  30.         x1 = -b / (2 * a);
  31.         cout << "Jedno rozwiazanie: x = " << x1 << endl;
  32.     }
  33.     else {
  34.         cout << "Brak rozwiazan rzeczywistych (delta < 0)" << endl;
  35.     }
  36.  
  37.     return 0;
  38. }
  39.  
Success #stdin #stdout 0s 5304KB
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stdin
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Standard input is empty
stdout
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Delta = -44
Brak rozwiazan rzeczywistych (delta < 0)
https://ideone.com/PVaxIJ
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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