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Robert_Manea

nr prime

Nov 25th, 2019
127
0
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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <math.h>
  4.  
  5. int main()
  6. {int a[20];
  7. int n,i,j,ok,nr=0;
  8. printf("n=");
  9. scanf("%d",&n);
  10. for(i=0;i<n;i++){
  11. printf("a[%d]=",i);
  12. scanf("%d",&a[i]);
  13. }
  14. for(i=0;i<n;i++){
  15. ok=1;
  16. if(a[i<2])
  17. ok=0;
  18. for(j=2;j<=sqrt(a[i]);i++)
  19. if(a[i]%j==0){
  20. ok=0;
  21. break;
  22. }if(ok==1)
  23. nr++;
  24. printf("%d",nr);
  25. }
  26.  
  27. return 0;
  28. }
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