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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,d;
  10. 		cin>>n>>d;
  11. 		int a[n];
  12. 		long long sum[n+1];
  13. 		sum[0]=0;
  14. 		for(int i=0;i<n;i++)
  15. 		cin>>a[i];
  16. 		int k=0,mini=INT_MAX;
  17. 		for(int i=0;i<n;i++)
  18. 		{
  19. 			if(a[i]>=d)
  20. 			{
  21. 				mini=1;
  22. 				break;
  23. 			}
  24. 			sum[i+1]=sum[i]+a[i];
  25. 		           // cout<<sum[i+1]<<"n"<<i<<" ";
  26.  
  27. 			if(sum[i+1]<=0 && i!=n-1)
  28. 			{
  29. 				sum[i+1]=-INT_MAX;
  30. 				k=i+1;
  31. 			}
  32. 			if(sum[i+1]>=d)
  33. 			{
  34. 				int j;
  35. 				for(j=i-1;j>=k;j--)
  36. 				{
  37. 					if(sum[i+1]-sum[j+1]>=d)
  38. 					{
  39. 						k=j+1;
  40. 					//	cout<<"Vals k"<<k<<" ";
  41. 						break;
  42. 					}
  43. 				}
  44.  
  45. 			//	cout<<sum[i+1]<<"r"<<i<<" ";
  46. 				mini=min(mini,i-k+1);
  47. 			//	cout<<"Y";
  48. 			}
  49. 		}
  50. 		if(mini==INT_MAX)
  51. 		cout<<-1<<endl;
  52. 		else cout<<mini<<endl;
  53. 	}
  54. 	return 0;
  55. }
Success #stdin #stdout 0s 4388KB
comments (?)
stdin
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2
6 6
2 1 2 3 2 4
5 1
1 2 3 1 -5
stdout
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2
1
https://ideone.com/Mh2UrY
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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