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  1. #include <iostream>
  2. #include <cmath>
  3. long M(double x, double p_min, long n)
  4. {
  5.     n--;
  6.     double p = 1;
  7.     double b = std::pow(x, n + 1);
  8.     long m = n;
  9.  
  10.     while (p > 1 - p_min)
  11.     {
  12.         p = p - b;
  13.         m++;
  14.         b = b * (1 - x) * ((double)m / (m - n));
  15.     }
  16.  
  17.     return m;
  18. }
  19.  
  20. int main() {
  21. 	std::cout << M(0.25, 0.3, 2);
  22. }
Success #stdin #stdout 0s 3344KB
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https://ideone.com/2XWFpU
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
secret

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