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;
		}