long[] (long[] ranges) { for (int i = 0; i < ranges.length; i += 2) { if (ranges[i] < 0 && ranges[i + 1] >= 0) { long[] result = new long[ranges.length + 2]; System.arraycopy(ranges, 0, result, 0, i + 1); result[i + 1] = -1; System.arraycopy(ranges, i + 1, result, i + 3, ranges.length - i - 1); return result; } } return ranges; }