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  1. #include <iostream>
  2. #include <random>
  3.  
  4. using namespace std;
  5.  
  6. int getNum(int N, double p)
  7. {
  8.     static default_random_engine u(random_device{}());
  9.     uniform_real_distribution<> r(0,1);
  10.     double q = (1-p)/(N-1);
  11.     return int(r(u)/q);
  12. }
  13.  
  14. int main(int argc, char * argv[])
  15. {
  16.     int cnt[11] = {};
  17.     for(int i = 0; i < 1000000; ++i)
  18.     {
  19.         cnt[getNum(11,0.001)]++;
  20.     }
  21.     for(int i: cnt) cout << i << endl;
  22. }
  23.  
Success #stdin #stdout 0.02s 5660KB
comments (?)
stdin
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Standard input is empty
stdout
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100360
99728
100164
100185
99781
99733
99894
100397
99359
99410
989
https://ideone.com/1HsrA9
language:
C++14 (gcc 8.3)
created:
2 years ago
visibility:
public

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