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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.     double c, eps;
  6.     cin >> c >> eps;
  7.  
  8.     double a = 1.0;
  9.     double b = c;
  10.     double m;
  11.  
  12.     while (b - a > eps) {
  13.         m = (a + b) / 2.0;
  14.  
  15.         if (m * m > c)
  16.             b = m;
  17.         else
  18.             a = m;
  19.     }
  20.  
  21.     cout << (a + b) / 2.0 << endl;
  22.     return 0;
  23. }
  24.  
Success #stdin #stdout 0.01s 5284KB
comments (?)
stdin 
c = 4
eps = 0.001
stdout 
0.5
https://ideone.com/NYZh8J
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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