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  1. #include <iostream>
  2. #include <cmath>
  3.  
  4. using namespace std;
  5.  
  6. int main()
  7. {
  8.     double c;
  9.     double a, b, m;
  10.     double eps = 1e-6;
  11.     int iter = 0;
  12.     int maxIter = 1000;
  13.  
  14.     cout << "Podaj liczbe c > 1: ";
  15.     cin >> c;
  16.  
  17.     if (c <= 1)
  18.     {
  19.         cout << "Blad: c musi byc > 1" << endl;
  20.         return 1;
  21.     }
  22.  
  23.     // Przedzial poczatkowy
  24.     a = 1.0;
  25.     b = c;
  26.  
  27.     // Metoda bisekcji
  28.     do
  29.     {
  30.         m = (a + b) / 2.0;
  31.  
  32.         if (m * m > c)
  33.             b = m;
  34.         else
  35.             a = m;
  36.  
  37.         iter++;
  38.  
  39.     } while (fabs(m * m - c) > eps && iter < maxIter);
  40.  
  41.     cout << "Przyblizona wartosc sqrt(" << c << ") = " << m << endl;
  42.     cout << "Liczba iteracji: " << iter << endl;
  43.  
  44.     return 0;
  45. }
  46.  
Success #stdin #stdout 0s 5292KB
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4
stdout
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Podaj liczbe c > 1: Przyblizona wartosc sqrt(4) = 2
Liczba iteracji: 22
https://ideone.com/zSwMuv
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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