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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 		int t;
  6. 		cin >> t;
  7. 		while(t--)
  8. 		{
  9. 			int n,k;
  10. 			cin >> n >> k;
  11. 			vector<int> v;
  12. 			for(int i=0;i<n;i++)
  13. 			{
  14. 				int a;
  15. 				cin >> a;
  16. 				v.push_back(a);
  17. 			}
  18. 			int c=0,sum=0;
  19. 			for(int i=0;i<n;i++)
  20. 			{
  21. 				sum = sum + v[i];
  22. 				if(i==(2*k-1))
  23. 				{
  24.  
  25. 					if(sum>0)
  26. 					{
  27. 						c--;
  28.  
  29. 					}
  30. 					else
  31. 					{
  32. 						c++;
  33.  
  34. 					}
  35. 					sum = 0;
  36. 					i++;
  37.  
  38. 				}
  39. 			}
  40. 			cout << c << endl;
  41. 		}
  42. 	return 0;
  43. }
Success #stdin #stdout 0.01s 5288KB
comments (?)
stdin
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5
5 1
0 1 0 0 0
7 3
0 0 0 0 0 0 0
3 1
1 1 1
4 2
0 1 0 1
6 2
0 0 1 0 0 0
stdout
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-1
1
-1
-1
-1
https://ideone.com/dXdvwP
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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