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Max sum subarray by removing at most one element (Function Problem)

Given an array, the task is to complete the function which  finds the maximum sum subarray, where you may remove atmost one element to get the maximum sum.

Examples:

```Input  : A[] = {1, 2, 3, -4, 5}
Output : 11
Explanation : We can get maximum sum subarray by
removing -4.

Input  : A[] = [-2, -3, 4, -1, -2, 1, 5, -3]
Output : 9
Explanation : We can get maximum sum subarray by
removing -2 as, [4, -1, 1, 5] summing 9, which is
the maximum achievable sum.```

Input:
The first line of input contains an integer T denoting the number of test cases. The description of T test cases follows. The first line of each test case contains a single integer N denoting the size of array. The second line contains N space-separated integers A1, A2, ..., AN denoting the elements of the array.

Output:
For each test case in a new line output will be the maximum sum subarray.

Constraints:
1<=T<=100
1<=N<=100
-1000<=A[]<=1000

Example(To be used only for expected output):
Input:

2
5
1 2 3 -4 5
8
-2 -3 4 -1 -2 1 5 -3

Output:
11
9

Note:The Input/Ouput format and Example given are used for system's internal purpose, and should be used by a user for Expected Output only. As it is a function problem, hence a user should not read any input from stdin/console. The task is to complete the function specified, and not to write the full code.

#### ** For More Input/Output Examples Use 'Expected Output' option **

Contributor: Harshit Sidhwa

##### It is recommended to 'Compile & Test' your code before clicking 'Submit'!

Compilation/Execution Result: