Method link

src/class201/Code07_Network1.java:157–162

(int x, int y)

	}

	public static void link(int x, int y) {
		makeroot(x);
		if (findroot(y) != x) {
			fa[x] = y;
		}
	}

	public static void cut(int x, int y) {
		makeroot(x);