Method getEdge

app/src/main/java/solver/Roux.java:339–349

(int[] n, int c, int p, int o)

    }

    private static void getEdge(int[] n, int c, int p, int o) {
        int[] s = new int[3];
        Utils.idxToPerm(s, p, 3, false);
        int t, q = 3;
        for (t = 0; t < 12; t++)
            if (c >= Utils.Cnk[11 - t][q]) {
                c -= Utils.Cnk[11 - t][q--];
                n[t] = s[q] << 1 | o & 1;
                o >>= 1;
            } else n[t] = -1;
    }

    private static void getCorner(int[] n, int c, int p, int o) {
        int[] s = new int[4];