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  1. #include<iostream>
  2.  
  3. using namespace std;
  4.  
  5. int checkn(int k, int n)
  6. {
  7. 	int i=0;
  8. 	while(k>0)
  9. 	{
  10. 		i++;
  11. 		k=k/10;
  12. 	}
  13. 	if (i==n) return 1;
  14. 	return 0;
  15. }
  16.  
  17. int nguyento(int k)
  18. {
  19. 	for(int i=2;i*i<=k;i++)
  20. 	{
  21. 		if(k%i==0) return 0;
  22. 	}
  23. 	return 1;
  24. }
  25.  
  26. int tong(int k)
  27. {
  28. 	int tong;
  29. 	while(k>0)
  30. 	{
  31. 		tong=tong+k%10;
  32. 		k=k/10;
  33. 	}
  34. 	if(nguyento(tong)) return 1;
  35. 	return 0;
  36. }
  37.  
  38. int chuso(int k)
  39. {
  40. 	while(k>0)
  41. 	{
  42. 		if(nguyento(k%10)==0) return 0;
  43. 		k=k/10;
  44. 	}
  45. 	return 1;
  46. }
  47.  
  48. int main()
  49. {
  50. 	int k, n; cin>>k>>n;
  51. 	if(checkn(k,n)&&nguyento(k)&&tong(k)&&chuso(k))
  52. 	cout<<"YES\n";
  53. 	else cout<<"NO\n";
  54. 	return 0;
  55. }
  56.  
  57.  
Success #stdin #stdout 0.01s 5280KB
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Standard input is empty
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NO
https://ideone.com/RMCNiN
language:
C++ (gcc 8.3)
created:
2 hours ago
visibility:
public

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