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  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. int check1(long long n){
  6. 	int count=0;
  7. 	while(n!=0){
  8. 		n/=10;
  9. 		++count;
  10. 	}
  11. 	return count;
  12. }
  13.  
  14. int check2(long long n){
  15. 	if(n<2) return 0;
  16. 	for(int i=2;i<=(n/2);i++){
  17. 		if(n%i==0){
  18. 			return 0;
  19. 		}
  20. 	}
  21. 	return 1;
  22. }
  23.  
  24. int check3(long long n){
  25. 	int tong=0;
  26. 	while(n!=0){
  27. 		int a=n%10;
  28. 		tong +=a;
  29. 		n/=10;
  30. 	}
  31. 	if(check2(tong)==1) return 1;
  32. 	else return 0;
  33. }
  34.  
  35. int check4(long long n){
  36. 	while(n!=0){
  37. 		int a=n%10;
  38. 		if(check2(a)==0) return 0;
  39. 		n/=10;
  40. 	}
  41. 	return 1;
  42. }
  43. int main(){
  44.  
  45. 	return 0;
  46. }
Success #stdin #stdout 0.01s 5276KB
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https://ideone.com/wlLKQq
language:
C++ (gcc 8.3)
created:
4 hours ago
visibility:
public

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