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hiker43

primenumbers

Aug 15th, 2018
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C++ 0.51 KB | None | 0 0
  1. #include <iostream>
  2.  
  3. int main()
  4. {
  5.     const int n = 1000;
  6.     bool prosti[n+1];
  7.    
  8.     prosti[0] = false;
  9.     prosti[1] = false;
  10.  
  11.     for(int i=2;i<=n;i++)
  12.         prosti[i]=true;
  13.  
  14.     for(int p=2;p<=n;p++)
  15.     {
  16.         if(prosti[p]==true)
  17.         {
  18.             for(int j=2*p;j<=n;j+=p)
  19.                 prosti[j]=false;
  20.         }
  21.     }
  22.     std::cout << "Prosti brojki od 1 do " << n << " se:\n";
  23.     for(int i = 1; i <= n; i++)
  24.     {
  25.         if(prosti[i]) std::cout << i << "\n";
  26.     }
  27.  
  28. }
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