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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	unsigned long long n,i,pos=1;
  6. 	bool test_base(unsigned long long,unsigned long long),x;
  7. 	for(n=2;n>0;n++)
  8. 		{
  9. 			x=true;
  10. 			for(i=2;i<=pos+1;i++)
  11. 				{
  12. 					if(!test_base(n,i))
  13. 						{
  14. 							x=false;
  15. 							break;
  16. 						}
  17. 				}
  18. 			if(x)
  19. 				{
  20. 					cout<<n<<endl;
  21. 					pos++;
  22. 				}
  23. 			if(pos==5)
  24. 				break;
  25. 		}
  26. 	return 0;
  27. }
  28. bool test_base(unsigned long long t,unsigned long long b)
  29. 	{
  30. 		unsigned long long temp=t,dig;
  31. 		bool ret=true;
  32. 		while(temp>=1)
  33. 			{
  34. 				dig=temp%b;
  35. 				temp/=b;
  36. 				if(dig>1)
  37. 					{
  38. 						ret=false;
  39. 						break;
  40. 					}
  41. 			}
  42. 		return ret;
  43. 	}
Success #stdin #stdout 0.05s 3456KB
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https://ideone.com/C3VIQI
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
secret

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