1350A - Orac and Factors

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  1. 1350A - Orac and Factors


  2. #include<iostream>
  3. using namespace std;
  4. int main(){
  5. long n,k;
  6. int t,i;
  7. cin>>t;
  8. while(t--){
  9. long c=0;
  10. cin>>n>>k;
  11. if(n%2==0){
  12. n=n+2*k;
  13. cout<<n<<endl;
  14. }
  15.  
  16. else{
  17. for(int j=2;j<=n;j++){
  18. if(n%j==0) 
  19. {c=j;
  20. break;}
  21. }
  22. c=c+n;

  24. c=c+2*(k-1);

  26. cout<<c<<endl;
  27. }

  29. }
  30. return 0;}

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