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  1. #include<iostream>
  2. #include<math.h>
  3. using namespace std;
  4. int main()
  5. {
  6. 	int t;
  7. 	while(t--){
  8. 	int i,n,k,flag=1;
  9. 	// cout << "Enter a number:" << endl;
  10. 	cin >> n;
  11.  
  12. 	n=n+1;
  13. 	while(n>0)
  14. 	{
  15. 		if(n==1)
  16. 			break;
  17. 		if(n%2 != 0)
  18. 		{
  19. 			flag = 0;
  20. 			break;
  21. 		}
  22. 		else
  23. 		n=n/2;
  24. 	}
  25. 	if(flag==1)
  26. 		cout << "Mersenne number" << endl;
  27. 	else
  28. 		cout << "Not a mersenne number" << endl;
  29. 	}
  30. return 0;
  31. }
Success #stdin #stdout 0s 4540KB
comments (?)
stdin
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5
7 31 63 2 5
stdout
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Standard output is empty
https://ideone.com/b8jCZQ
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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