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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. string f(string a , int n , int x , int m) {
  5. 	if(x == n) return a;
  6. 	if(m > 40) return "-1";
  7. 	f(a +  "1 " ,  n , (2*x)-1 , m + 1);
  8. 	f(a +  "2 " ,  n , (2*x)+1 , m + 1);
  9. }
  10.  
  11. int main() {
  12. 	int t , n;
  13. 	cin >> t;
  14. 	while(t--) {
  15. 		cin >> n;
  16. 		if(n % 2 == 0) cout<<"-1";
  17. 		else {
  18. 			//string b = f("" , n , 1 , 0);
  19. 			cout<<"-1"<<" ";
  20. 		}
  21. 		cout<<"\n";
  22. 	}
  23.  
  24. 	return 0;
  25. }
Success #stdin #stdout 0.01s 5284KB
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stdin
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1
3
stdout
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-1
https://ideone.com/F6kr2j
language:
C++14 (gcc 8.3)
created:
237 days ago
visibility:
public

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