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  1. #include <iostream>
  2. #include <vector>
  3. #include <map>
  4. #include <random>
  5.  
  6. int main()
  7. {
  8. // no hardware access on ideone
  9. //    std::random_device rd;
  10. //    std::mt19937 gen(rd());
  11.     std::mt19937 gen(time(NULL));
  12.  
  13.     std::vector<double> p = {0, 1.0/15, 2.0/15, 3.0/15, 4.0/15, 5.0/15};
  14.     std::discrete_distribution<> d(p.begin(), p.end());
  15.     std::map<int, int> m;
  16.     for(int n=0; n<10000; ++n) {
  17.         ++m[d(gen)];
  18.     }
  19.     for(auto i = m.begin(); i!=m.end(); ++i) {
  20.         std::cout << i->first << " generated " << i->second << " times\n";
  21.     }
  22. }
  23.  
Success #stdin #stdout 0s 3024KB
comments (?)
stdin 
Standard input is empty
stdout 
1 generated 685 times
2 generated 1323 times
3 generated 2011 times
4 generated 2628 times
5 generated 3353 times
https://ideone.com/jU1ll
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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