Question: Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than or equal tox. You should preserve the original relative order of the

主题：面经 题目： Given a singly list. Check if it is circular. Code： import java.util.*; class Test{ public static void main(String[] args){ Node n1 = new Node(1); Node n2 = new Node(2); N