Malutan

1.b)cifre prime

Nov 17th, 2019
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  1. #include<iostream>
  2. using namespace std;
  3. int main()
  4. {
  5. int n,c,x=0,i=1;
  6. cin>>n;
  7. do
  8. {
  9. c=n%10;
  10. if(c==1 || c==2 || c==3 || c==5 || c==7)
  11. {
  12. x=x+c*i;
  13. }
  14. else
  15. {
  16. i=i/10;
  17. }
  18. i=i*10;
  19. n=n/10;
  20. }
  21. while(n);
  22. cout<<x;
  23. return 0;
  24. }
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