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  1. #include <bits/stdc++.h>
  2. #define EPS double(1e-10)
  3. using namespace std;
  4.  
  5. double factorial(double n)
  6. {
  7.   if(n==0)
  8.     return 1;
  9.   if(n==1)
  10.     return 1;
  11.   return n*factorial(n-1);
  12. }
  13.  
  14. double combination(double n,double k)
  15. {
  16.   double rpta  = factorial(n)/(factorial(k)*factorial(n-k));
  17.   // cout << rpta << "\n";                                                                                                                                                                                         
  18.   return double(rpta);
  19. }
  20.  
  21.  
  22. int main()
  23. {
  24.   int n;cin >> n;
  25.   for(int i = 0 ; i < n ; ++i)
  26.     {
  27.       double r,s,x,y,w; cin >> r >> s >> x >> y >> w;
  28.       double d  = s-r+1;
  29.       double prob = d/s;
  30.       // cout << prob << "\n";                                                                                                                                                                                     
  31.       double rprob = prob;
  32.       for(int j = 0 ; j < int(x)-1 ; ++j)
  33.         {
  34.           rprob*=prob;
  35.         }
  36.       // cout << rprob << "\n";                                                                                                                                                                                    
  37.       double rrprob = double(combination(y,x) * w * rprob);
  38.       cout << rrprob << "\n";
  39.       // cout << rrprob << "\n";                                                                                                                                                                                   
  40.       if(rrprob > double(1) )
  41.         {
  42.           cout << "yes";
  43.         }
  44.       else
  45.         cout << "no";
  46.       cout << "\n";
  47.     }
  48.   return 0;
  49. }
  50.  
Success #stdin #stdout 0s 3460KB
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https://ideone.com/RKQGin
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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