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  1. #include <iostream>
  2. using namespace std;
  3. #include <bits/stdc++.h>
  4.  
  5. int main() {
  6. 	// your code goes here
  7.  
  8. 	vector<int>arr={1,2,1,0,1,1,0};
  9. 	int n=arr.size();
  10.  
  11. 	int k;
  12. 	cin>>k;
  13. 	int window_sum=0;
  14. 	int i=0,j=0;
  15. 	int max_length=INT_MIN;
  16. 	while(j<n)
  17. 	{
  18. 		window_sum+=arr[j];
  19.  
  20. 		while(i<=j && window_sum<=k)
  21. 		 {
  22. 		 	max_length=max(max_length,j-i+1);
  23. 		 	window_sum=window_sum-arr[i];
  24. 		 	i++;
  25. 		 }
  26. 		j++;
  27. 	}
  28. 	if(max_length==INT_MIN)
  29. 	 {
  30. 	 	cout<<-1;
  31. 	 }
  32. 	 else
  33. 	  {
  34. 	  	cout<<max_length;
  35. 	  }
  36. //	cout<<max_length;
  37.  
  38.  
  39. 	return 0;
  40. }
Success #stdin #stdout 0.01s 5280KB
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https://ideone.com/Ham1jO
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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