问题 该文章的最新版本已迁移至个人博客[比特飞],单击链接 https://www.byteflying.com/archives/3901 访问. 给定一个链表,判断链表中是否有环. 进阶: 你能否不使用额外空间解决此题? Given a linked list, determine if it has a cycle in it. Follow up: Can you solve it without using extra space? 示例 该文章的最新版本已迁移至个人博客[比特飞],单…
Design your implementation of the linked list. You can choose to use the singly linked list or the doubly linked list. A node in a singly linked list should have two attributes: val and next. valis the value of the current node, and next is a pointer…