public static int jumpingOnClouds(List<Integer> c) {
        int count = 0;
        for (int i = c.size() - 1; i > 0; i--) {
            int p = i - 2;
            int q = i - 1;
            if (p > -1 && c.get(p) != 1) {
                i = q;
            }
            count++;
        }
        return count;
    }