fork download
copy 
  1. #include<bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6. 	int t, x, sum;
  7. 	cin>>t;
  8. 	while (t--)
  9. 	{
  10. 		cin>>x;
  11. 		if (x > 45)
  12. 		{
  13. 			cout<<-1<<endl;
  14. 			continue;
  15. 		}
  16. 		if (x <= 9)
  17. 		{
  18. 			cout<<x<<endl;
  19. 			continue;
  20. 		}
  21. 		else
  22. 		{
  23. 			int arr[] = {9, 8, 7, 6, 5, 4, 3, 2, 1};
  24. 			int res = 0;
  25. 			sum = 0;
  26. 			for (int i=0; i<10; i++)
  27. 			{
  28. 				if ((sum+arr[i]) <= x)
  29. 				{
  30. 					sum += arr[i];
  31. 					res = res * 10 + arr[i];
  32. 					//cout<<res<<endl;
  33. 				}
  34. 			}
  35. 			cout<<res<<endl;
  36. 			int r, revres = 0;
  37. 			while (res > 0)
  38. 			{
  39. 				r = res % 10;
  40. 				revres = revres*10 + r;
  41. 				res = res/10;
  42. 			}
  43. 			cout<<revres<<endl;
  44. 		}
  45. 	}
  46. 	return(0);
  47. }
Success #stdin #stdout 0.01s 5304KB
comments (?)
stdin
copy 
1
15
stdout
copy 
15
0
https://ideone.com/MqKna9
language:
C++14 (clang 8.0)
created:
1 year ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!