a53

F_p-numar_bac

a53
Oct 10th, 2020
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  1. int kpn(int a, int b, int k)
  2. {
  3. int d,s;
  4. for(;a<=b && k!=0; a++)
  5. {
  6. s=0;
  7. for(d=1; d*d<a; d++)
  8. if(a%d==0)
  9. s+=d+a/d;
  10. if(d*d==a)
  11. s+=d;
  12. if(a%2==s%2)
  13. k--;
  14. }
  15. a--;
  16. if(k==0)
  17. return a;
  18. else
  19. return -1;
  20. }
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