XOR-ing the Subarrays!

Given an integer array A of size N.

You need to find the value obtained by XOR-ing the contiguous subarrays, followed by XOR-ing the values thus obtained. Determine and return this value.

For example, if A = [3, 4, 5] :

Subarray    Operation   Result
3       None            3
4       None            4
5       None            5
3,4   3 XOR 4         7
4,5   4 XOR 5         1
3,4,5    3 XOR 4 XOR 5   2

Now we take the resultant values and XOR them together:

3 ⊕ 4 ⊕ 5 ⊕ 7 ⊕ 1⊕ 2 = 6 we will return 6.

1 <= N <= 10⁵

1 <= A[i] <= 10⁸

First and only argument is an integer array A.

Return a single integer denoting the value as described above.

Input 1:

 A = [1, 2, 3]

Input 2:

 A = [4, 5, 7, 5]

Output 1:

 2

Output 2:

 0

Explanation 1:

 1 ⊕ 2 ⊕ 3 ⊕  (1 ⊕ 2 ) ⊕ (2 ⊕ 3) ⊕ (1 ⊕ 2 ⊕ 3) = 2

Explanation 2:

 4 ⊕ 5 ⊕ 7 ⊕ 5 ⊕ (4 ⊕ 5) ⊕ (5 ⊕ 7) ⊕ (7 ⊕ 5) ⊕ (4 ⊕ 5 ⊕ 7) ⊕ (5 ⊕ 7 ⊕ 5) ⊕ (4 ⊕ 5 ⊕ 7 ⊕ 5) = 0