double minDelta = average > arr[0] ? average - arr[0] : arr[0] - average;
	int index = 0;

	for (int i = 1; i < size; ++i) {
		double tmpDelta;
		if (average > arr[i]) {
			tmpDelta = average - arr[i];
		}
		else {
			tmpDelta = arr[i] - average;
		}

		if (tmpDelta < minDelta) {
			minDelta = tmpDelta;
			index = i;
			cout << index << endl;
		}
	}