public static int[] two2one(int[][] two) {
		int[] one = new int[two.length * two[0].length];
		for (int i = 0; i < two.length; i++) {
			for (int j = 0; j < two[i].length; j++) {
				one[i * two[i].length + j] = two[i][j];
			}
		}
		return one;
	}