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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Codechef
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		// your code goes here
  10. 		int t;
  11. 		Scanner sc = new Scanner(System.in);
  12. 		t = sc.nextInt();
  13. 		while(t-->0){
  14. 		    int n = sc.nextInt();
  15. 		    long[]  a =new long[n];
  16. 		    for(int i=0;i<n;i++){
  17. 	        a[i] = sc.nextInt();
  18. 		    }
  19. 		    long sum=0;
  20. 		    for(int i=0;i<n-1;i++){
  21. 		        if(a[i]>a[i+1]){
  22. 		            sum+=a[i];
  23. 		        }else{
  24. 		            sum+=a[i+1];
  25. 		        }
  26. 		    }
  27. 		    sum+=a[n-1];
  28. 		    System.out.println(sum);
  29. 		}
  30.  
  31. 	}
  32. }
  33.  
Success #stdin #stdout 0.15s 54492KB
comments (?)
stdin 
3
4
1 2 3 4
3
3 2 1
4
2 7 3 5
stdout 
13
6
24
https://ideone.com/8CUww0
language:
Java (HotSpot 12)
created:
9 hours ago
visibility:
public

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