In a given integer array A, we must move every element of A to either list B or list C. (B and C initially start empty.)
Return true if and only if after such a move, it is possible that the average value of B is equal to the average value of C, and B and C are both non-empty.
Example : Input: [1,2,3,4,5,6,7,8] Output: true Explanation: We can split the array into [1,4,5,8] and [2,3,6,7], and both of them have the average of 4.5.
Note:
<li>The length of <code>A</code> will be in the range [1, 30].</li>
<li><code>A[i]</code> will be in the range of <code>[0, 10000]</code>.</li>