Method read

app/src/main/java/solver/Utils.java:296–303

(char[] arr, InputStream in)

    //data storage
    public static void read(char[] arr, InputStream in) throws IOException {
        int len = arr.length;
        byte[] buf = new byte[len * 2];
        in.read(buf);
        for (int i = 0; i < len; i++) {
            arr[i] = (char) ((buf[i * 2] & 0xff) | ((buf[i * 2 + 1] << 8) & 0xff00));
        }
    }

    public static void read(int[] arr, InputStream in) throws IOException {
        int len = arr.length;