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  1. #include <iostream>
  2. #include <vector>
  3. #include <queue> 
  4. using namespace std;
  5.  
  6. int main() {
  7.  
  8. 	int n;
  9. 	cin>>n;
  10.  
  11. 	queue<int> q;
  12. 	for(int i=1;i<=n;i++)
  13. 	{
  14. 		q.push(i);
  15. 	}
  16.  
  17. 	bool flag=false;
  18. 	while(!q.empty())
  19. 	{
  20. 		int val = q.front();
  21. 		q.pop();
  22.  
  23. 		if(flag == true)
  24. 		{
  25. 			cout<<val<<" ";
  26. 		}
  27. 		else
  28. 		{
  29. 			q.push(val);
  30. 		}
  31. 		flag=!flag;
  32. 	}
  33.  
  34. 	return 0;
  35. }
Success #stdin #stdout 0s 5244KB
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https://ideone.com/irEO69
language:
C++14 (gcc 8.3)
created:
11 days ago
visibility:
public

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