void () { BitSet[] change = buildChange(new int[]{1, 2, 3, 4, 5, 6, 7, 8, 7, 9, 10, 2, 11, 12, 5, 13, 7, 8, 7}, new int[]{10, 2, 11, 12, 5, 13, 7, 8, 7, 9, 1, 2, 3, 4, 5, 6, 7, 8, 7}); checkChange(change, new int[]{1, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1}, new int[]{1, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1}); }