public static boolean judgeKplex2(ArrayList<Pair> res,
			HashMap<Integer, Pair> candidate) {
		int size = res.size() + candidate.size() - k_plex;
		for (Pair r : res) {
			if (r.rdeg + r.cdeg < size)
				return false;
		}
		for (Pair c : candidate.values()) {
			if (c.rdeg + c.cdeg < size)
				return false;
		}
		return true;
	}