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  1. #include <iostream>
  2. #include <cstdlib>
  3. #include <ctime>
  4.  
  5. int main() {
  6.   std::srand(std::time(NULL));
  7.  
  8.   const unsigned int trials = 1e6;
  9.   unsigned int wins = 0;
  10.  
  11.   for (unsigned int i = 0; i < trials; ++i) {
  12.     if (rand() % 500 == 0) {
  13.       ++wins;
  14.     }        
  15.   }
  16.  
  17.   std::cout << "1/500 -> 0.2%\n"; 
  18.   std::cout << "Result:  " << (static_cast<double>(wins) / trials) * 100.0
  19.             << "%\n";
  20.  
  21.   return 0;
  22. }
Success #stdin #stdout 0.04s 2724KB
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Standard input is empty
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1/500 -> 0.2%
Result:  0.1996%
https://ideone.com/0jZJST
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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