private static void readInOneLeapData(String file) throws IOException {
		BufferedReader reader = new BufferedReader(new FileReader(file));
		String line;
		StringTokenizer stk;
		while ((line = reader.readLine()) != null) {
			stk = new StringTokenizer(line);
			int k = Integer.parseInt(stk.nextToken());
			HashSet<Integer> adj = new HashSet<Integer>();
			nodeSet.add(k);
			while (stk.hasMoreTokens()) {
				Integer v = Integer.parseInt(stk.nextToken());
				if(k==v)
					continue;
				adj.add(v);
			}
			oneLeap.put(k, adj);
		}
		reader.close();
	}