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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		// your code goes here
  13. 		Scanner sc=new Scanner(System.in);
  14. 		int n=sc.nextInt();
  15. 		int a[]=new int[n];
  16. 		int prefix=0;
  17. 		int k=sc.nextInt();
  18. 		for(int i=0;i<n;i++)
  19. 		a[i]=sc.nextInt();
  20. 		int max=-9999;
  21. 		int count=0;
  22. 		Map<Integer,Integer> m=new HashMap<>();
  23. 		for(int i=0;i<n;i++)
  24. 		{
  25. 			prefix=prefix+a[i];
  26. 			int val=prefix-k;
  27. 			if(m.containsKey(val))
  28. 			{
  29. 				int dist=(i-m.get(val))+1;
  30. 				max=Math.max(dist,max);
  31. 				if(max==dist)
  32. 				count++;
  33. 			}
  34. 			m.putIfAbsent(prefix,i);
  35. 		}
  36. 		System.out.println(count);
  37. 	}
  38. }
Success #stdin #stdout 0.12s 56676KB
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https://ideone.com/TACD5V
language:
Java (HotSpot 12)
created:
10 hours ago
visibility:
public

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