Method add

src/class153/Code04_Bookcase1.java:117–124

(int s)

	}

	public static void add(int s) {
		num[++cnt] = s;
		pos[s] = cnt;
		size[cnt] = 1;
		father[cnt] = head;
		right[head] = cnt;
		splay(cnt, 0);
	}

	public static int ask(int s) {
		int i = pos[s];