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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int ok1(int k, int n){
  5. 	int cnt = 0;
  6. 	while(k!=0){
  7. 		++cnt;
  8. 		k /= 10;
  9. 	}
  10. 	if(cnt == n) return 1;
  11. 	else return 0;
  12. }
  13.  
  14. int ok2(int k){
  15. 	if(k<2) return 0;
  16. 	for(int i = 2; i <= sqrt(k); i++){
  17. 		if(k%i==0) return 0;
  18. 	}
  19. 	return 1;
  20. }
  21.  
  22. int ok3(int k){
  23. 	int sum = 0;
  24. 	while(k!=0){
  25. 		sum += k % 10;
  26. 		k /= 10;
  27. 	}
  28. 	if(ok2(sum)) return 1;
  29. 	else return 0;
  30. }
  31.  
  32. int ok4(int k){
  33. 	while(k!=0){
  34. 		int x = k % 10;
  35. 		if(ok2(x)==0) return 0;
  36. 		k /= 10;
  37. 	}
  38. 	return 1;
  39. }
  40.  
  41. int main(){
  42. 	int k, n;
  43. 	cin >> k >> n;
  44. 	if(ok1(k,n) && ok2(k) && ok3(k) && ok4(k)) cout << "Yes";
  45. 	else cout << "No";
  46.  
  47.  
  48. }
Success #stdin #stdout 0s 5284KB
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https://ideone.com/jMexs9
language:
C++ (gcc 8.3)
created:
5 hours ago
visibility:
public

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