 Palindromic Array
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You are given an array A of size N. Your task is to find the minimum number of operations needed to convert the given array to 'Palindromic Array'.
Palindromic Array:
[23,15,23] is a ‘Palindromic Array’ but [2,0,1] is not.
The only allowed operation is that you can merge two adjacent elements in the array and replace them with their sum.

Input:
The first line of input contains an integer T denoting the number of test cases.The first line of each test case is N, where N is the size of array.The second line of each test case contains N space separated integers which is the input for the array.

Output:
Output the minimum number of operations required to make the given array a palindromic array.

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

Example:
Input:
2
5
3 2 3 3 5
4
5 3 3 4
Output:
1
3

Explanation:
For Test Case 1: [3 2 3 3 5] after merging the 1st two elements 3 and 2, we get the array as [5 3 3 5] which is a palindrome, hence only 1 operation is needed.

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