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  1. //#include "stdafx.h"
  2. #include <iostream>
  3. //#include <conio.h>
  4. #include <cmath>
  5.  
  6. using namespace std;
  7.  
  8. int main()
  9. {
  10.     float fA;
  11.     cout << "Podaj wspolczynnik a: ";
  12.     cin >> fA;
  13.  
  14.     float fB;
  15.     cout << "Podaj wspolczynnik b: ";
  16.     cin >> fB;
  17.  
  18.     float fC;
  19.     cout << "Podaj wspolczynnik c: ";
  20.     cin >> fC;
  21.  
  22.     double delta;
  23.     delta = fB * fB - 4 * fA * fC;
  24.     double p_delta = sqrt(delta);
  25.  
  26.  
  27.     if (fA == 0)
  28.     {
  29.         if (fB == 0.0)
  30.         {
  31.             if (fC == 0.0)
  32.                 cout << "Rownanie spelnia kazda liczba rzeczywista."
  33.                 << endl;
  34.             else
  35.                 cout << "Rownanie nie posiada rozwiazan." << endl;
  36.         }
  37.         else
  38.             cout << "x = " << -fC / fB << endl;
  39.     }
  40.     else if (delta > 0)
  41.     {
  42.         cout << "delta = " << delta << endl;
  43.         cout << "x1 = " << (-fB - p_delta) / (2 * fA) << endl << "x2 = " << (-fB + p_delta) / (2 * fA);
  44.     }
  45.     else if (delta == 0)
  46.     {
  47.         cout << "delta = " << delta << endl;
  48.         cout << "x = " << -fB / (2 * fA);
  49.     }
  50.     else cout << "brak rozwiazan";
  51.  
  52.     return 0;
  53. }
  54.  
Success #stdin #stdout 0s 3232KB
comments (?)
stdin 
3 33 4
stdout 
Podaj wspolczynnik a: Podaj wspolczynnik b: Podaj wspolczynnik c: delta = 1041
x1 = -10.8774
x2 = -0.122578
https://ideone.com/xFITx3
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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