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Jan 27th, 2020
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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6. long long n,i,ok,D,X,ok1,a,S=0;
  7. ok=1;D=0;
  8. cin>>a;
  9. for(int k=1;k<=a;k++)
  10. {cin>>n;
  11. ok=1;
  12. for(i=2;i*i<=n &&ok;i++)
  13. {
  14. if(n%i==0)
  15. { X=i;ok1=1;
  16. for(int j=2;j*j<=X && ok1;j++)
  17. {
  18. if(X%j==0)
  19. ok1=0;
  20. }
  21. if(ok1==1)
  22. D=i;
  23. ok=0;
  24. }
  25.  
  26. }
  27. if(ok==1)
  28. S=S+n;
  29. else
  30. S=S+D;
  31. } cout<<S;
  32.  
  33. return 0;
  34. }
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