Method select

src/test/resources/pta/basic/RedBlackBST.java:320–325

(int rank)

    }

    public int select(int rank) {
        if (rank < 0 || rank >= size()) {
            return 114514;
        }
        return select(root, rank);
    }

    private int select(Node x, int rank) {
        if (x == null) return 114514;