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a53

divizor112

a53
Apr 10th, 2017
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  1. #include <fstream>
  2. using namespace std;
  3. ifstream f("divizor112.in");
  4. ofstream g("divizor112.out");
  5. int n,a,x[500001];
  6.  
  7. void divizori(int n)
  8. {
  9. for(int d=2;d*d<=n;++d)
  10. if(n%d==0)
  11. ++x[d],++x[n/d],n/=d;
  12. }
  13.  
  14. int main()
  15. {
  16. f>>n;
  17. for(int i=1;i<=n;++i)
  18. f>>a,divizori(a);
  19. int maxim=0,imax;
  20. for(int i=2;i<=500000;++i)
  21. if(x[i]>maxim)
  22. maxim=x[i],imax=i;
  23. g<<imax;
  24. return 0;
  25. }
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