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Contest 1001: BISTU 20110904 In-school contest - Problem 1070: I think it's hard

Problem ID 1070
Title I think it's hard
pdf  
Description
Siu Ming is only seven years old, Now I give him some numbers, and ask him what is the second
largest sum if he can choose a part of them. For example, if I give him 1 、 2 、 3 , then he should tell
me 5 as 6 is the largest and 5 is the second. I think it is too hard for him, isn't it?
Input
Standard input will contain multiple test cases. The first line of the input is a single integer T (1 ≤ T ≤ 10) which is the number of test cases. And it will be followed by T consecutive test cases.
Each test case starts with a line containing an integer N (1 < N < 10), the number I give Siu Ming. The second line contains N Integer numbers ai (-10 < ai < 10),

 

Output
For each test case, output the answer.
Sample Input
2
3
1 2 3
4
0 1 2 3
Sample Output
5
5
Hint
 
Last Modified 2012-04-11 00:34:13
Time Limit 1 seconds
Memory Limit 32 MB
Accepted Solutions 1
Submitted Solutions 1
Difficulty Factor 0