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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 in = new Scanner(System.in);
  14.  
  15. 		int n = in.nextInt();
  16. 		int[] arr = new int[n + 1];
  17.  
  18. 		int[] prefix = new int[n + 1];
  19.  
  20. 		for(int i=1;i<=n;i++){
  21. 			arr[i] = in.nextInt();
  22. 		}
  23.  
  24. 		for(int i=1;i<=n;i++){
  25. 			prefix[i] = prefix[i - 1] + arr[i];
  26. 		}
  27.  
  28.  
  29. 		int q = in.nextInt();
  30.  
  31. 		for(int i=0;i<q;i++){
  32. 			int l = in.nextInt();
  33. 			int r = in.nextInt();
  34.  
  35. 			System.out.println(prefix[r + 1] - prefix[l]);
  36.  
  37.  
  38. 		}
  39. 	}
  40. }
Success #stdin #stdout 0.13s 54532KB
comments (?)
stdin
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3
1 4 1
3
1 1
1 2
0 2
stdout
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4
5
6
https://ideone.com/2hX4ZB
language:
Java (HotSpot 12)
created:
3 days ago
visibility:
public

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