Method idxToComb

app/src/main/java/solver/Utils.java:197–204

(int[] comb, int index, int k, int n)

    }

    public static void idxToComb(int[] comb, int index, int k, int n) {
        for (int i = n - 1; i >= 0; i--) {
            if (index >= Cnk[i][k]) {
                index -= Cnk[i][k--];
                comb[i] = 1;
            } else comb[i] = 0;
        }
    }

    public static boolean permutationSign(int[] permutation) {
        int nInversions = 0;