public boolean balancedSplitExists(int[] arr) {
Arrays.sort(arr);
int i = 0;
int j = arr.length - 1;
int leftSum = arr[0];
int rightSum = arr[arr.length-1];
while(i <= j) {
if(leftSum < rightSum) {
i++;
leftSum+=arr[i];
}else if (leftSum > rightSum) {
j--;
rightSum+=arr[j];
} else break;
}
if(j-i == 1) return true;
else return false;
}