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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+1];
  16.  
  17. 		for(int i=1;i<=n;i++)
  18. 		a[i]=sc.nextInt();
  19.  
  20. 		int prefix[]=new int[n+1];
  21.  
  22. 		for(int i=1;i<=n;i++)
  23. 		prefix[i]=prefix[i-1]+a[i];
  24.  
  25.  
  26. 		int q=sc.nextInt();
  27. 		while(q-->0)
  28. 		{
  29. 			int l=sc.nextInt();
  30. 			int r=sc.nextInt();
  31.  
  32. 			System.out.println(prefix[r]-prefix[l-1]);
  33. 		}
  34. 	}
  35. }
Success #stdin #stdout 0.14s 56520KB
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https://ideone.com/Mmg2PY
language:
Java (HotSpot 12)
created:
1 day ago
visibility:
public

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